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Electronic copy available at: http://ssrn.com/abstract=2403839 1 COASEAN KEEP-AWAY: VOLUNTARY TRANSACTION COSTS Jordan M. Barry, * John William Hatfield, ** & Scott Duke Kominers Abstract The Coase Theorem predicts that, if there are no transaction costs, parties will always contract their way to an efficient outcome. Thus, no matter which legal rules society chooses, “Coasean bargains” will lead to efficient results. There are always some transaction costs. However, transaction costs are often thought to be low when there are no structural impediments to negotiation, such as large numbers of parties or barriers to communication. When these obstacles are not present, it is commonly assumed that the parties will achieve an efficient result through Coasean bargaining. We show that this assumption is incorrect. * Associate Professor and Herzog Endowed Scholar, University of San Diego School of Law. ** Associate Professor, McCombs School of Business, University of Texas at Austin. Junior Fellow, Harvard Society of Fellows; Associate, Department of Economics, Harvard University; Associate, Harvard Business School; Research Scientist, Harvard Program for Evolutionary Dynamics; Associate, Center for Research on Computation and Society, Harvard School of Engineering and Applied Sciences. We thank Emily Keifer, Phoebe Allardice, Andres Almazan, Gary S. Becker, Giuseppe Dari-Mattiacci, Noah Feldman, Lee Anne Fennel, Jerry Green, Zachary J. Gubler, James J. Heckman, Dale Jorgenson, Louis Kaplow, Elizabeth Pollman, J.J. Prescott, Alvin E. Roth, Elaine Scarry, Amartya Sen, Steven M. Shavell, and E. Glen Weyl as well as attendees at the National Business Law Scholars Conference, the Southern California Junior Faculty Workshop, and the University of San Diego faculty colloquium for their helpful thoughts and comments. This project was generously supported by a summer research grant from the University of San Diego School of Law. Kominers gratefully acknowledges the support of the National Science Foundation (Grant CCF-1216095), the Harvard Milton Fund, a Yahoo! Key Scientific Challenges Program Fellowship, a Terence M. Considine Fellowship in Law and Economics funded by the John M. Olin Center at Harvard Law School, the American Mathematical Society, and the Simons Foundation.

Coasean Keep-Away: Voluntary Transaction Costs

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Electronic copy available at: http://ssrn.com/abstract=2403839

1

COASEAN KEEP-AWAY:

VOLUNTARY

TRANSACTION COSTS

Jordan M. Barry,* John William Hatfield,

**

& Scott Duke Kominers†

Abstract

The Coase Theorem predicts that, if there are no

transaction costs, parties will always contract their way to an

efficient outcome. Thus, no matter which legal rules society

chooses, “Coasean bargains” will lead to efficient results.

There are always some transaction costs. However,

transaction costs are often thought to be low when there are no

structural impediments to negotiation, such as large numbers of

parties or barriers to communication. When these obstacles are

not present, it is commonly assumed that the parties will achieve

an efficient result through Coasean bargaining. We show that this

assumption is incorrect.

* Associate Professor and Herzog Endowed Scholar, University of San Diego

School of Law. **

Associate Professor, McCombs School of Business, University of Texas at

Austin. † Junior Fellow, Harvard Society of Fellows; Associate, Department of

Economics, Harvard University; Associate, Harvard Business School; Research

Scientist, Harvard Program for Evolutionary Dynamics; Associate, Center for

Research on Computation and Society, Harvard School of Engineering and

Applied Sciences. We thank Emily Keifer, Phoebe Allardice, Andres Almazan,

Gary S. Becker, Giuseppe Dari-Mattiacci, Noah Feldman, Lee Anne Fennel,

Jerry Green, Zachary J. Gubler, James J. Heckman, Dale Jorgenson, Louis

Kaplow, Elizabeth Pollman, J.J. Prescott, Alvin E. Roth, Elaine Scarry, Amartya

Sen, Steven M. Shavell, and E. Glen Weyl as well as attendees at the National

Business Law Scholars Conference, the Southern California Junior Faculty

Workshop, and the University of San Diego faculty colloquium for their helpful

thoughts and comments. This project was generously supported by a summer

research grant from the University of San Diego School of Law. Kominers

gratefully acknowledges the support of the National Science Foundation (Grant

CCF-1216095), the Harvard Milton Fund, a Yahoo! Key Scientific Challenges

Program Fellowship, a Terence M. Considine Fellowship in Law and Economics

funded by the John M. Olin Center at Harvard Law School, the American

Mathematical Society, and the Simons Foundation.

Electronic copy available at: http://ssrn.com/abstract=2403839

2

In particular, we demonstrate that transaction costs can be

high, even when there are no structural impediments to

bargaining, because the parties themselves may intentionally

create transaction costs. Intuitively, an individual may prefer the

Coasean bargain that is struck when certain parties are excluded

from negotiations. Accordingly, that individual will wish to create

transaction costs that keep those parties—potentially including

herself—away from the negotiating table. We show that there are

many contexts in which the parties will choose to create these

“voluntary transaction costs,” including environmental litigation,

multilateral treaty negotiations, and creditor-debtor relationships.

Because of the prevalence of voluntary transaction costs,

Coasean logic applies to a significantly smaller class of cases than

has previously been recognized. This renders law very important:

Legal rules provide the starting point for the parties' negotiation;

we find that when the parties’ starting point is closer to the

efficient result, they are more likely to achieve an efficient outcome

through Coasean bargaining. This insight favors reasonable use

rules and other legal rules that attempt to assign entitlements in an

efficient manner. We also find that liability remedies are more

likely to encourage efficient outcomes than injunctive remedies

are.

I. INTRODUCTION ...........................................................................3

II. BACKGROUND ON THE COASE THEOREM ....................................8 III. VOLUNTARY TRANSACTION COSTS ..........................................15

A. The Private Value of Transaction Costs for Others .............17 B. The Private Value of Transaction Costs for Oneself ............24 C. Voluntary Transaction Costs and Inefficiency .....................28

IV. IMPLICATIONS FOR CHOOSING LEGAL RULES ...........................43 A. Structuring Legal Rights ......................................................44

1. Legal Rules That Always Produce Efficiency .................. 44 2. The Value of a More Efficient Starting Point ................... 47

B. The Importance of Legal Remedies ......................................57 1. Remedies in Low- and High- Transaction Cost

Environments .................................................................... 58 2. Injunctive Remedies vs. Liability Remedies .................... 60

C. Distributional Consequences ...............................................65

V. CONCLUSION ............................................................................66

3

I. INTRODUCTION

Legal scholars have cited Ronald Coase’s The Problem of

Social Cost more than they have cited any other scholarly work.1

In that article, Coase put forth what has become known as the

“Coase Theorem.”2 The Coase Theorem says, essentially, that if

there are no transaction costs, individuals will always organize

their behavior in a way that maximizes their combined well-being.

The logic is straightforward: If Ronald has the legal right to do

something, and George values that right more than Ronald, George

can purchase the right from Ronald. When there are no transaction

costs—that is, nothing impedes people from making and enforcing

contracts—people will make contracts that transfer legal rights to

the individuals who will use them most productively. These

contracts, known as “Coasean bargains,” always produce an

efficient outcome no matter how society initially assigns legal

rights.3 Thus, legal rules will have no effect on individuals’

behavior or their total wealth; they can only affect the way in

which wealth is distributed.4

Coase constructed the Coase Theorem as a reductio ad

absurdum to highlight how important transaction costs are: If one

accepts the premise that transaction costs are negligible, it follows

that legal rules do not affect behavior. Coase thought that this

1 See Fred R. Shapiro & Michelle Pearse, The Most Cited Law Review Articles

of All Time, 110 U. MICH. L. REV. 1483, 1489 (2012) (listing The Problem of

Social Cost as having 5,157 citations in law reviews alone, over 40% more

citations than the next-most-cited article). 2 The use of the term “Coase Theorem” to describe the insight of The Problem of

Social Cost is usually attributed to George Stigler. Coase himself never stated a

formal theorem; this has become increasingly problematic as the field of

economics has become more technical and mathematically precise. See R.H.

Coase, The Problem of Social Cost, 3 J.L. & ECON. 1 (1960); GEORGE STIGLER,

THE THEORY OF PRICE (1966). In our Companion Paper, we formalize the

Coase Theorem and formally prove our results. See Companion Paper, infra

note 11, passim. 3 See, e.g., Thomas W. Merrill & David M. Schizer, The Shale Oil and Gas

Revolution, Hydraulic Fracturing, and Water Contamination: A Regulatory

Strategy, 98 U. MINN. L. REV. 145, 210-11 (2013); Melissa B. Jacoby & Edward

J. Janger, Ice Cube Bonds: Allocating the Cost of Process in Chapter 11

Bankruptcy, 123 YALE L.J. 862 (2014). 4 This is a slight oversimplification. Legal rules change transfer payments and,

in certain specific circumstances, can affect final behaviors as well. See, e.g.,

Guido Calabresi & A. Douglas Melamed, Property Rules, Liability Rules, and

Inalienability: One View of the Cathedral, 85 HARV. L. REV. 1089, 1095-96

(1972). We address this issue more formally in Part II. See footnote 19, infra,

and accompanying text.

4

conclusion was clearly incorrect. Accordingly, the premise—that

transaction costs are negligible—must be false.5

As Coase himself recognized, real-world agreements

always involve some transaction costs, so the Coase Theorem

never applies directly. Nonetheless, it is widely agreed that the

Coase Theorem’s predictions generally persist when transaction

costs are low.6 Transaction costs are often thought to be low when

there are no structural impediments to negotiation, such as very

large numbers of parties or laws that make it difficult to form or

enforce contracts.7

5 See, e.g., Robert C. Ellickson, The Case for Coase and Against “Coaseanism”,

99 YALE L.J. 611 (1989). 6 See, e.g., Ian Ayres & Robert Gertner, Strategic Contractual Inefficiency and

the Optimal Choice of Legal Rules, 101 YALE L.J. 729, 761-62 (1992); Richard

R.W. Brooks, The Relative Burden of Determining Property Rules and Liability

Rules: Broken Elevators in the Cathedral, 97 NW. U. L. REV. 267, 270 n.11

(2002) (“[E]fficiency is always achieved when transaction costs are sufficiently

small . . . .”); Adam Chase, The Efficiency Benefits of “Green Taxes”: A Tribute

to Senator John Heinz, 11 UCLA J. ENV’L L. & POL’Y 1, 7 (1992) (“When

transaction costs are negligible, . . . parties will eventually contract with one

another so that they optimize the allocation of [rights].”); Lee Anne Fennell, The

Problem of Resource Access, 126 HARV. L. REV. 1471, 1499 (2013) (“It is

standard to assume that in a low transaction cost world, property and markets are

all we need.”); George S. Geis, Empirically Assessing Hadley v. Baxendale, 32

FLORIDA ST. U. L. REV. 897, 909 n.62 (noting that “if transaction costs are

[sufficiently] small” then “everyone [will] contract[] around inefficient

defaults”); Pierre Schlag, Coase Minus the Coase Theorem—Some Problems

with Chicago Transaction Cost Analysis, 99 IOWA L. REV. 175, 205 n.96 (2013)

(“When transaction costs are sufficiently negligible [the Coase Theorem’s

predictions will hold].”); David Schleicher, City Unplanning, 122 YALE L.J.

1670, 1682 (2013) (“The assignment of [a] right should not matter if transaction

costs are low, as Coasean bargaining . . . should ensure that we get to the

optimal [result].”); Christopher Jon Sprigman et al., What’s a Name Worth?:

Experimental Tests of the Value of Attribution in Intellectual Property, 93 B.U.

L. REV. 1389, 1421 (2013) (“[W]hen transaction costs are small, default rules

should have no effect.”); Todd J. Zywicki, A Unanimity-Reinforcing Model of

Efficiency in the Common Law: An Institutional Comparison of Common Law

and Legislative Solutions to Large-Number Externality Problems, 46 CASE W.

RESERVE L. REV. 961, 999-1000 (1996). 7 See, e.g., Omri Ben-Shahar, Damages for Unlicensed Use, 78 U. CHI. L. REV.

7, 27-28 (2011) (arguing that transaction costs are low between parties who have

already entered into a licensing agreement); Ariel L. Bendor, Prior Restraint,

Incommensurability, and the Constitutionalism of Means, 68 FORDHAM L. REV.

289, 325-26 (1999) (“[I]n the field of intellectual property, transaction costs are

generally low[, i]n part [because] the intellectual property interest in a given

work tends to be found in the hands of one person or a limited number of

people.”); Kenneth W. Dam, Some Economic Considerations in the Intellectual

Property Protection of Software, 24 J. LEG. STUD. 321, 365 (1995) (arguing that

transaction costs will be low in the software industry because the parties are

5

businesses, there are many possible transaction structures, and the universe of

potential contracting parties is limited and knowable); Alan Devlin, Restricting

Experimental Use, 32 HARV. J.L. & PUB. POL’Y 599, 638-40 (2009) (arguing

that transaction costs will be low for patent licensing agreements because

negotiations are “between a small number of easily identifiable parties over a

discrete topic”); Alan Grant & Emily Grant, The Bride, the Groom, and the

Court: A One-Ring Circus, 35 CAPITAL U. L. REV. 743, 753 (2007) (arguing that

transaction costs will be low between parties getting engaged because there are

only two, easily identified parties); Henry Hansmann & Reinier Kraakman,

Toward Unlimited Shareholder Liability for Corporate Torts, 100 YALE L.J.

1879, 1893-94 (1991) (noting that corporate shareholders may easily be able to

create complex agreements when there are relatively few shareholders); Trotter

Hardy, Property (and Copyright) in Cyberspace, 1996 U. CHI. LEGAL F. 217,

219-237 (arguing that transaction costs are low in cyberspace because it is easy

for the parties to communicate); Keith Hylton, Duty in Tort Law: An Economic

Approach, 75 FORDHAM L. REV. 1501, 1513-14 (2006) (arguing that transaction

costs are low in the trespass context); Eugene Kontorovitch, Liability Rules for

Constitutional Rights: The Case of Mass Detentions, 56 STAN. L. REV. 755, 769-

70 (2004) (arguing that well-functioning markets make transaction costs low for

purchases of corporate stock); Eugene Kontorovitch, The Constitution in Two

Dimensions: A Transaction Cost Analysis of Constitutional Remedies, 91 VA. L.

REV. 1135, 1165-66 (2005) (arguing that transaction costs of quartering soldiers

are low in peacetime, but not in wartime, because there are well-functioning

rental and construction markets); Robert Merges, Intellectual Property Rights

and Bargaining Breakdown: The Case of Blocking Patents, 62 TENN. L. REV.

75, 76-78 (1994) (arguing that transaction costs are low with respect to patents

licensing, as “(1) there are only two parties to the transaction, and they can

easily identify each other; [and] (2) the costs of a transaction between the parties

are otherwise low”); Thomas W. Merrill, Trespass, Nuisance, and the Costs of

Determining Property Rights, 14 J. LEGAL STUD. 13, 13-15 (1985) (arguing that

transaction costs are likely to be low in the context of trespass because there are

only two parties and they are generally identifiable); Maureen A. O’Rourke,

Rethinking Remedies at the Intersection of Intellectual Property and Contract:

Toward a Unified Body of Law, 82 IOWA L. REV. 1137, 1148, 1185-86 (1997)

(arguing that transaction costs are typically low with respect to copyright and

trademark licensing transactions, as “there are few parties to the transaction” and

contracting rules are not onerous); Alan Schwartz, A Contract Theory Approach

to Business Bankruptcy, 107 YALE L.J. 1807, 1819-20 (1998) (arguing that

transaction costs are low in renegotiations of commercial sales of goods because

there are few parties and the legal requirements to modify a contract are not

onerous); David E. Van Zandt, An Alternative Theory of Practical Reason in

Judicial Decisions, 65 TULANE L. REV. 775, 821 n.202 (1991) (concluding that

transaction costs are likely to be low in landlord-tenant negotiations because

there are only two parties); Developments in the Law of Cyberspace, Internet

Regulation Through Architectural Modification: The Property Rule Structure of

Code Solutions, 112 HARV. L. REV. 1634, 1636 & n. 13 (1999) (arguing that

“transaction costs are extremely low” in cyberspace because the medium

facilitates communication and the recording of data); Aaron T. Dozeman,

Salinger and eBay: When Equitable Considerations Undermine Exclusivity, 21

DEPAUL J. ART, TECH. & INTELLECTUAL PROPERTY L. 323, 346-50 (2011)

(arguing that transaction costs are low in negotiations to use copyrighted works

because they only involve two parties); Daniel Kearney, Network Effects and the

Emerging Doctrine of Cybertrespass, 23 YALE L. & POL’Y REV. 313, 338-39

(2005) (arguing that “transaction costs are likely to be low” in online

6

In this Article, we show that transaction costs can be high

even when there are no structural impediments to negotiation.

Individuals will frequently wish to create transaction costs, even

when those transaction costs prevent the formation of an efficient

Coasean bargain. Because these intentionally manufactured

transaction costs are created by choice, and are not an unavoidable

consequence of the circumstances in which the parties find

themselves, we term them voluntary transaction costs.

Intuitively, an individual may prefer that some transaction

costs exist because the parties will strike different deals depending

on who is seated at the metaphorical negotiating table. An

individual may prefer the deal that will be struck if certain parties

are excluded from negotiations over the deal that is struck when

those parties participate. In such instances, that individual will

wish to create transaction costs that keep those parties away from

the negotiating table.

To take a simple example, an investor who owns a plot of

pristine woodlands might wish to sell the land to a developer who

wants to build on that land. A conservationist might prefer that the

land remain in its natural state. If she can, she will create

transaction costs that prevent the investor and the developer from

coming to the negotiating table and striking a deal.8

Moreover, in many instances an individual may wish to

create transaction costs in order to keep herself away from the

negotiating table. In her absence, the remaining parties at the table

will often reach an agreement that closely resembles the agreement

that they would have made if she had participated in the

negotiations. However, by not participating in the deal, the absent

individual can avoid having to contribute any of her own resources

to support it. In essence, creating transaction costs can allow an

individual to hitch a free ride on the labors of others. This can

leave her better off than if she had participated in the negotiations.

interactions, even when there are many parties, because many interactions are

automated and it is easy for parties to communicate). 8 This general scenario is quite common; for example, a similar dynamic is

currently playing out with respect to a half-billion-dollar construction project in

San Diego. See notes 81-97, infra, and accompanying text.

7

For example, suppose that several nations convene a

meeting to organize a peacekeeping action. An individual country

may decline to participate, even if it favors the mission and wants

it to succeed: By declining to participate, it can avoid having to

contribute its own resources to the project. So long as that

country’s contributions are not essential, the mission will still go

forward. Not participating may enable the country to reap the

same benefits as it would if it participated, but at a lower cost.9

As we demonstrate, there are a large number of

circumstances in which parties will wish to create voluntary

transaction costs. The prevalence of voluntary transaction costs

means that the Coase Theorem’s prediction—that people will

negotiate their way to an efficient outcome—applies in many

fewer scenarios than has previously been appreciated. In short,

Coase was more insightful than perhaps even he realized.

We demonstrate that, when voluntary transaction costs are

possible, the parties will typically achieve an efficient outcome

under certain legal regimes, but not others. This makes the choice

of legal regime increasingly important.

We explore two aspects of legal regimes that strongly

affect the likelihood of an efficient outcome. The first is how the

legal system initially assigns legal rights among actors. We

identify some circumstances in which assigning legal rights to

particular parties always encourages efficient Coasean bargains.

More generally, we find that the parties’ likelihood of striking an

efficient Coasean bargain depends on how the legal system

initially assigns legal rights among the parties: The more efficient

that initial assignment is, the more likely the parties are to strike an

efficient Coasean bargain. This favors reasonable use rules and

other legal rules that attempt to allocate rights in a way that

resembles the efficient outcome.

The second key feature is the remedy available when a

legal right is violated. In some instances, a protected party has the

9 This dynamic applies to many other actions that require international

coordination, including pollution reduction and trade sanctions. See notes 109-

115, infra, and accompanying text; see also Avinash Dixit & Mancur Olson,

Does Voluntary Participation Undermine the Coase Theorem, 76 J. PUB. ECON.

309 (2000).

8

right to injunctive relief—that is, she can secure a court order that

effectively forbids the illegal action. In other instances, the law

merely provides a liability remedy; the protected party’s only

recourse is to collect damages from the party acting unlawfully.10

Our analysis suggests that liability remedies foster efficient

Coasean bargains in a larger set of circumstances than injunctive

remedies do. With respect to both legal rules and remedies, we

find trade-offs between the likelihood that a particular legal regime

will foster an efficient result and the amount of information that

courts and legislators must have to implement that regime.

This Article proceeds as follows. Part II provides general

background on the Coase Theorem and how it is commonly

understood. Part III uses a series of simple examples to illustrate

how voluntary transaction costs affect the Coase Theorem’s

predictions. Specifically, it shows when and why parties will want

to manufacture transaction costs for themselves and others, even

when doing so creates inefficiencies. It also identifies real-world

scenarios that are likely to exhibit dynamics that resemble our

stylized examples. Part IV explores how the initial choice of legal

rules and remedies can affect final outcomes, and the implications

that this has for designing legal regimes. Throughout the paper,

we include citations to a companion paper that contains formal

proofs of our results.11

Part V concludes.

II. BACKGROUND ON THE COASE THEOREM

To understand the Coase Theorem, it is helpful to first

define two concepts. First, a particular state of the world is

efficient if it maximizes the combined welfare of all parties.12

An

example helps illustrate this.

Suppose that Ronald has $2000 in cash and a car that he

values at $1000. Suppose further that George has $2000 in cash,

10

We use “injunctive remedies” and “liability remedies” to refer to what much

of the literature refers to as “property rules” and “liability rules.” See Calabresi

& Melamed, supra note 4, at 1092 (starting this practice). We do so in order to

sharpen the distinction between legal rules, which establish what actions are

lawful, and the remedies available when those rules are violated. 11

See Jordan M. Barry et al., Voluntary Transaction Costs and the Coase

Theorem, available at scottkom.com/article [hereinafter Companion Paper]. 12

More precisely, if it maximizes the combined utility of the parties. See HAL

R. VARIAN, INTERMEDIATE MICROECONOMICS 54-55 (4th ed. 1996)

9

and that George values Ronald’s car at $2000. This state of the

world is not efficient. If George were to buy Ronald’s car for

$1500, both Ronald and George would be better off—Ronald

would go from having $3000 worth of utility to $3500,13

and

George’s utility would increase from $2000 to $250014

—raising

their combined utility. Thus, the state of the world in which

Ronald owns the car is inefficient, because Ronald and George’s

combined utility is higher when George buys the car from Ronald.

Similarly, the state of the world in which George buys the

car is efficient, as there is no way to reallocate resources between

Ronald and George in a way that increases their combined utility.

It is possible to make either Ronald or George better off by moving

money between them—in other words, increasing or decreasing

the price that George pays Ronald for the car—but the combined

utility of Ronald and George will remain the same.

Second, we must define a transaction cost. Scholars have

used this term to encompass a wide range of phenomena, but, at its

broadest, it includes anything that impedes a transaction.15

This

would include, for example, the time it takes the parties to

negotiate a deal, the time it takes to locate the relevant interested

parties, and the cost of enforcing an agreement.16

It has also been

applied to circumstances that complicate the bargaining process,

such as when the parties have asymmetric information17

or parties

must coordinate their efforts to achieve a common goal.18

13

Ronald started with $2000 in cash and a car he valued at $1000, giving him a

total of $3000 of value. Now he has $3500 in cash, making him $500 better off. 14

George originally had $2000 in cash. He now has $500 in cash and a car that

he values at $2000, making him $500 better off. 15

See, e.g., Calabresi & Melamed, supra note 4, at 1094-95. 16

See, e.g., Tun-Jen Chiang, The Reciprocity of Search, 66 VANDERBILT L. REV.

1, 21-22 (2013) (discussing circumstances in which it may be difficult to

determine whether a party has breached an agreement). 17

See, e.g., Ian Ayres & Eric Talley, Solomonic Bargaining: Dividing a Legal

Entitlement to Facilitate Coasean Trade, 104 YALE L.J. 1027, 1035 (1995)

(“This Article focuses on a specific type of transaction cost: private

information.”); Calabresi & Melamed, supra note 4, at 1094-95 (defining

transaction costs to include imperfect knowledge). 18

See, e.g., James E. Krier & Stewart J. Schwab, The Cathedral at Twenty-Five:

Citations and Impressions, 106 YALE L.J. 2121, 2135 (1997) Kevin Werbach,

Supercommons: Toward a Unified Theory of Wireless Communication, 82 TEX.

L. REV. 863, 953 n.385 (2004).

10

We are now able to state the Coase Theorem: If there are

no transaction costs, and legal rights are clear, then no matter

which legal rules society adopts, the parties will reach an efficient

result.19

This does not mean that legal rules do not matter, because

they will have distributional effects—that is, legal rules can make

particular parties better or worse off than they would be

otherwise—but the choice of legal rules will not affect efficiency.20

The intuition behind the Coase Theorem is as follows: If

society chooses legal rules that are not efficient, then, by

definition, there are other ways of allocating rights among the

parties that would make them better off as a group.21

If the parties

can make themselves better off as a group, then they can make

transfers between themselves so that each individual member of

the group is better off.22

In other words, if the parties can strike a

deal that grows the economic pie, everyone can have a bigger slice.

Thus, in any inefficient state of the world, it is in every party’s

interest to move to an efficient state. And, because there are no

transaction costs—that is, there is nothing to impede the parties

from making any deal that is in their interests—the parties will

make and implement an agreement to move the world to an

efficient state. These efficiency-creating agreements are

commonly referred to as Coasean bargains.23

One of Coase’s classic examples24

illustrating his theorem

involves a railroad track that runs next to a wheat field. 25

The

19

The version of the Coase Theorem we state here depends on the presence of a

numeraire good (money) that all parties value equally, as well as an assumption

that parties can borrow this good, i.e., that the parties are not credit-constrained.

Without these assumptions the Coase Theorem guarantees that the world will

reach a Pareto efficient result, but not necessarily one that maximizes the

combined utility of all parties. See, e.g., PAUL MILGROM & JOHN ROBERTS,

ECONOMICS, ORGANIZATION AND MANAGEMENT (1992). We suppress these

technical issues for clarity and ease of exposition: Throughout this Article, we

assume that the difference in the monetary value that each actor assigns to

different outcomes is finite and independent of the actor’s wealth, and that all

actors have access to enough cash to support any relevant Coasean bargain. 20

RICHARD A. POSNER, ECONOMIC ANALYSIS OF LAW 63-64 (8th ed. 2011). 21

Id. at 7. 22

This follows from the assumptions made in footnote 19, supra. 23

See sources cited in note 3, supra. 24

See Coase, supra note 2, at 29-34. Our example differs slightly from Coase’s.

We return to variations on this example throughout this Article. 25

We revisit variations on this basic theme throughout this Article. See Parts

III.A-C, IV.A-B, infra.

11

railroad’s locomotive shoots off sparks. If these sparks hit the

wheat, the field will burst into flame, which is extremely costly

(that is, inefficient). There are two possible solutions: (1) the

railroad can refrain from running its locomotive, or (2) the

farmer—let’s call her Alice—can plant her wheat far enough back

from the train track to ensure that sparks will not land on her wheat

and ignite it. 26

Assume that there are no transaction costs.

First, assume that the law gives farmers the right to not

have sparks on their land; in other words, assume that farmers have

the right to prevent railroads from running any locomotives that

shoot sparks onto their land. Suppose that running the train is

worth $500 to the railroad and that Alice will lose $1000 if she has

to plant back from the track. In these circumstances, the railroad

will not run the train and Alice will plant near the track. This is

efficient, so the parties have no incentive to strike a different

deal.27

Now suppose that we change the legal rule, so that

railroads have the right to shoot sparks off of their locomotives.

This would be inefficient, as the railroad would be willing to forgo

running the train in exchange for a payment of $500 or more, and

Alice would be willing to pay up to $1000 to be able to plant wheat

closer to the track. In this scenario, Alice and the railroad have an

incentive to strike a deal in which Alice pays the railroad not to run

the train so that she can plant closer to the track. As long as Alice

pays the railroad more than $500 but less than $1000,28

both

26

It is often tempting to see one party as the victim of the other’s behavior, but

this is frequently counterproductive. Externalities in the Coasean sense are

inherently symmetric: If the farmer has the right to have no sparks on his land,

then the railroad does not have the right to emit sparks from its locomotive.

Giving the farmer the legal right harms the railroad and vice versa. The right to

engage in an activity is equivalent, from an economic perspective, to a right to

be free from harm. See ROBERT H. FRANK, THE DARWIN ECONOMY 90-95

(2011). 27

Recall that the benefit that the railroad would receive from running the train is

less than the harm that Alice would suffer from planting farther back from the

track. Accordingly, changing the status quo will not produce net gains. 28

Equivalent arrangements are possible in which both parties make payments;

for example, Alice could pay the railroad $3000 and the railroad could pay Alice

$2200. For simplicity and clarity of exposition, all of the cash payments

described in this example and throughout this paper are net payments.

12

parties will be strictly better off.29

We assume here, and

throughout the paper generally, that the parties at the table split

their joint gains evenly. We adopt this assumption merely to

simplify our exposition; we note that it is not necessary for our

analysis. Thus, Alice pays the railroad $750, leaving both her and

the railroad $250 better off than they would be if the railroad ran

its train past Alice’s field.30

Observe that in both of the cases discussed above, the

railroad did not run its train and Alice planted wheat right up to the

railroad track. Even though the legal rule was different, the parties

reached the same efficient result in both scenarios. The legal rule

in these scenarios is much like the car in the prior example—an

item that some parties value more than others, and which the

parties can trade among themselves. Note also that the choice of

legal rule does have distributional effects—the railroad is $750

better off in the second scenario than the first,31

and Alice is $750

better off in the first scenario than the second.32

Now suppose that the facts are exactly as described above,

except that the railroad reaps a benefit of $2000 when it runs its

train instead of $500. If the law protects farmers from having

sparks on their land, Alice would be willing to plant further back

from the track, as long as she was paid $1000 or more to do so.33

At the same time, the railroad would be willing to pay up to $2000

to be able to run its train.34

Once again, Alice and the railroad will

have an incentive to strike a deal. So long as the railroad pays

Alice more than $1000 and less than $2000 to plant her crops

further back from the track, both Alice and the railroad will be

better off. Assuming once again that Alice and the railroad split

29

Alice pays less than $1000 for a benefit worth $1000. The railroad loses a

benefit of $500 but receives more than $500 in cash. Thus, both parties are

better off. 30

The parties’ transaction creates $500 of joint gains. Each party gets half of

that: Alice pays $750 and receives $1000 in benefits; the railroad gets $750 and

loses $500 in benefits. 31

In both scenarios, the railroad does not run the train, but in the second

scenario it receives a $750 payment from Alice. 32

In both scenarios, Alice plants wheat up to the track, but in the first she makes

a $750 payment to the railroad. 33

Planting back from the track would cost Alice $1000 in forgone wheat, so she

must receive a cash payment of at least this amount to surrender her right. 34

Running the train gives the railroad a $2000 benefit, so the railroad is willing

to pay up to $2000 cash to acquire the right to run the train.

13

the gains from the transaction, the railroad will pay Alice $1500,

leaving both parties $500 better off.35

If the law gives railroads the right to shoot sparks off of

their locomotives, the railroad will run the train and Alice will

plant away from the track. This is an efficient outcome, so the

parties will not have any incentive to strike further deals.36

Once again, in both of these cases, Alice plants back from

the track and the railroad runs its train. This is an efficient result

because the cost to Alice of planting away from the track ($1000)

is less than the benefit to the railroad from running the train

($2000). There are distributional consequences to the choice of

legal rule, however; Alice is $1500 better off in the first scenario

compared to the second,37

and the railroad is $1500 better off in

the second scenario compared to the first.38

All of these examples assume that there are zero transaction

costs (as does the Coase Theorem itself). Because nothing

impedes Alice and the railroad from making deals, they can easily

and completely circumvent any inefficient legal rule and reach an

efficient result.

Assuming that there are no transaction costs is a

tremendous assumption. In reality, there are always some

transaction costs39

—for example, it will always take at least a

small amount of time to work out a deal40

—but, when transaction

costs are low, the basic logic of the Coase Theorem still applies.41

On the other hand, when parties face large transaction costs, the

legal rule—and not the relative benefits of different activities—

35

The parties’ bargain creates $1000 in net benefits. The railroad pays $1500

and gets a benefit of $2000 from running the train. Alice gets $1500 and loses

$1000 in forgone wheat. Thus, each party nets $500, one half of the gains

produced. 36

The railroad would lose $2000 if it lost the right to run its train, while Alice

would only gain half of that from being able to plant wheat closer to the track.

Thus, there are no gains to be had from trade. 37

In both scenarios, Alice does not plant wheat up to the track, but in the first

she receives a $1500 payment from the railroad. 38

In both scenarios, the railroad runs the train, but in the second it does not

make a $1500 payment to Alice. 39

See, e.g., POSNER, supra note 20, at 65. 40

Id. 41

Id.

14

may determine how parties behave.42

In such cases, legal rules

may control whether the parties reach an efficient outcome, as well

as how value is distributed among the various parties.

When assessing the magnitude of transaction costs standing

in the way of an agreement, commentators have generally focused

on structural features of the negotiations. For instance, scholars

have frequently considered the number of parties,43

how easily the

parties can communicate with each other,44

whether the parties

have the same information,45

whether the agreement being

negotiated has simple terms,46

and how easy it is for a party to

enforce an agreement after it is made.47

When these transaction

costs, which we term “structural transaction costs,” are low,

42

For example, suppose again that running the train produces benefits of $500

for the railroad, and that if the train does not run $1000 of additional wheat can

be planted near the track. However, assume that $1000 in lost profit is spread

among 200 farmers whose fields border the train track, each of whom loses $5.

The choice of legal rule is likely to be important, because it will probably be

very difficult to coordinate the 200 farmers to act together and raise enough

money to pay off the railroad not to run its train. Similarly, if the railroad gets a

benefit of $2000 from running the train, it will be costly for the railroad to track

down all of the farmers and make a deal with each one to plant wheat farther

back from the track. Parties also may not reach a deal if they have a strained or

contentious relationship (which can often happen after protracted litigation).

See Ward Farnsworth, Do Parties to Nuisance Cases Bargain After Judgment?

A Glimpse Inside the Cathedral, 66 U. CHI. L. REV. 373 (1999) (examining 20

nuisance cases that produced injunctions and finding that parties did not bargain

after any of them). 43

Commentators often assume that transaction costs are likely to be low when

there are few parties involved, and high when there are many parties involved.

See, e.g., POSNER, supra note 20, at 77; Zywicki, supra note 6, at 961-62.

However, bilateral monopolies can encourage strategic behavior, which is itself

a transaction cost. See POSNER, supra note 20, at 77-78. 44

See, e.g., Hardy, supra note 7; Mark A. Lemley, Shrinkwraps in Cyberspace,

35 JURIMETRICS 311, 323 (1995). This might be violated if, for example, the

parties do not speak the same language, either literally or figuratively. See, e.g.,

William Hubbard, The Competitive Advantage of Weak Patents, 54 BOSTON

COLLEGE L. REV. 1909, 1948 (2013). 45

The greater the extent to which the parties have asymmetric information, the

higher that transaction costs are usually expected to be. See, e.g., Ayres &

Talley, supra note 17, at 1035; Calabresi & Melamed, supra note 4, at 1094-95. 46

The logic is that agreements with more complicated terms take more time and

effort to negotiate and draft. Thus, these agreements involve larger transaction

costs. See, e.g., Devlin, supra note 7, at 638-40; Hansmann & Kraakman, supra

note 7, at 1893-94. 47

If it is relatively simple for a party to determine whether the agreement has

been honored and to be made whole for any damages she suffers as a result of

her counterparty’s non-compliance, transaction costs are expected to be lower.

To the extent that more costly monitoring actions are necessary, transaction

costs are expected to be higher. See, e.g., Hylton, supra note 7, at 1513-14.

15

commentators have often accepted the Coase Theorem’s

predictions.48

Structural transaction costs are undeniably important; large

structural transaction costs can prevent the parties from making

agreements. However, structural transaction costs are not the only

impediment to bargaining. As we demonstrate in Part III, even

when there are no structural transaction costs, in many instances

the parties themselves will intentionally generate transaction costs.

Thus, the zero-transaction-cost assumption is an even more

herculean assumption than is commonly recognized.

III. VOLUNTARY TRANSACTION COSTS

The Coase Theorem, and the basic logic underlying it, have

generally been explored and understood through a few famous

examples.49

These examples are designed to have low transaction

costs, and they generally resemble the examples described in Part

II. They involve exactly two parties. The parties’ identities

vary— a farmer and a railroad;50

a doctor and a confectioner;51

a

48

See, e.g., sources cited in footnote 7, supra. 49

There is also a second category of examples, designed to show how the logic

of the Coase Theorem breaks down when transaction costs are high. These

examples typically feature a large number of parties who are difficult to

coordinate. Common examples include motorists disturbing patients by honking

their horns as they drive by a hospital; traffic congestion; and overfishing of

global fisheries. However, the most common version involves a factory

emitting pollution that affects a large number of homeowners. See, e.g.,

POSNER, supra note 20, at 78-79; Jodi Beggs, The Coase Theorem, ABOUT.COM

(last visited Jan. 13, 2004) (providing a more modern spin by discussing a wind

farm whose turbines produce noise that bothers nearby households). Because

there are so many homeowners, organizing them into a unified group that can

jointly take action is assumed to be impossible. If the factory has the right to

pollute, but doing so is not efficient, the residents will not be able to coordinate

and collectively buy off the factory. Conversely, if each resident has the right to

prevent the factory from polluting, the factory will not be able to arrange a

purchase of that right from each resident. Thus, in these examples, Coasean

bargains are deemed impossible, and the legal rule controls the outcome. Cf.

Alan Schwartz & Joel Watson, The Law and Economics of Costly Contracting,

20 J.L. ECON. & ORG. 2, 3 (2004) (noting that “contracting and renegotiation

costs are . . . commonly assumed to be either very high or very low” and

“explor[ing] the middle ground”). 50

See, e.g., Robert C. Ellickson, Of Coase and Cattle: Dispute Resolution

Among Neighbors in Shasta County, 38 STAN. L. REV. 638 (1986). 51

See Sturges v. Bridgman, LR 11 Ch D 852 (1879).

16

farmer and a rancher;52

etc.53

—but they are almost always

neighbors who must resolve a question of conflicting rights.54

Does the confectioner have the right to use his kitchen as he sees

fit, even though it makes the doctor’s examination room noisy, or

does the doctor have the right to quiet in his examination room,

even though it means the confectioner cannot use his kitchen?55

These examples are useful, but they are not representative

of the broad class of problems to which the logic of the Coase

Theorem is often applied. In particular, they do not consider

scenarios in which there are more than two parties. In such

circumstances, parties will often have incentives to create

transaction costs.56

These voluntary transaction costs confound the

mechanism underlying the Coase Theorem, rendering its logic

applicable to a smaller class of circumstances than has previously

been recognized.

We begin by demonstrating why parties might wish to

create transaction costs for others, before turning to scenarios in

which they may wish to create transaction costs for themselves.57

52

See, e.g., Graciela Kuechle, & Diego Rios, The Coase Theorem Reconsidered:

The Role of Alternative Activities, 32 INT’L REV. L. & ECON. 129, 129-30

(2012). 53

See, e.g., Coase, supra note 2, at 8 (discussing a building that obstructed

currents of air, impairing a windmill’s operation); id. (discussing a building that

cast a shadow on a nearby hotel’s sunbathing area); id. at 37 (giving an example

involving one neighbor whose rabbits eat another neighbor’s crops). 54

See Calabresi & Melamed, supra note 4, at 1101 (describing parties in an

example illustrating the Coase Theorem as “inevitably neighbors”); Ellickson,

supra note 50. 55

See Coase, supra note 2, at 2. 56

In the two-party case, voluntary transaction costs should not arise because it is

in neither party’s interest to create them. See Companion Paper, supra note 11,

at thm 1. 57

For ease of exposition, we generally restrict our focus going forward to a

particular class of transaction costs that are easy to understand and model. In

the examples that follow, and for much of the remainder of this Article, we use

the term transaction costs to refer to costs that a party must pay to make any deal

at all; they are, quite literally, the cost of engaging in a transaction. Cf.

Farnsworth, supra note 42 (considering the transactional barriers created by

unhappiness about bargaining over a particular topic, or with a particular party).

Our definition fits comfortably within the heart of the definition of transaction

costs usually used in the literature, though that definition encompasses other

phenomena as well. See footnote 15, supra, and accompanying text. Moreover,

we note that our definition captures more of these other phenomena than might

initially be apparent. For example, a party may be able to eliminate the problem

of asymmetric information by conducting her own costly investigations.

17

We illustrate both of these dynamics by revisiting, and tweaking

slightly, our example from Part II.58

A. The Private Value of Transaction Costs for Others

There are many instances in which one or more individuals

will wish to create transaction costs for other parties. For example,

this dynamic arises whenever the following two criteria are met59

:

First, there is at least one “dispensable party”—a party whose

participation in the Coasean bargain is not necessary to achieve an

efficient result. Second, there is a dispensable party whose

preferred outcome is an inefficient one. More precisely, the

dispensable party prefers the Coasean bargain that would arise if

certain individuals (the “opposition”60

) did not participate in the

bargaining process over the efficient Coasean bargain that would

arise if everyone participated.61

To see why parties often wish to create transaction costs for

others, it is helpful to consider two separate possibilities. First,

suppose that the parties strike a Coasean bargain under which the

dispensable party does not receive any cash payments.62

By

assumption, there is some other Coasean bargain that (1) the

dispensable party would like better, and (2) would arise if the

opposition were excluded from the negotiating process.63

Accordingly, the dispensable party will wish to create transaction

costs that keep the opposition away from the bargaining table and

bring about her preferred outcome.

Similarly, coordination costs are essentially the time, effort, and other resources

required to assemble and organize collective action. One must commit those

resources in order to achieve the desired deal; thus, there is a cost to engaging in

such transactions as well. 58

Throughout this Article, we ignore mixed-strategy equilibria for two reasons:

First, it simplifies our analysis. Second, we primarily focus on the efficiency of

various outcomes. Our examples involve unique efficient outcomes; thus,

mixed-strategy equilibria are inefficient. 59

These conditions are sufficient, but not necessary. See footnotes 148-149,

infra, and accompanying text (discussing a scenario that does not satisfy these

conditions and in which parties wish to create transaction costs for others). 60

Cf. FRANK, supra note 26, at 90-95. 61

See Companion Paper, supra note 11, at § 2.1. 62

Again, the relevant measure is net payments. See note 28, supra. 63

See text accompanying note 61, supra.

18

On the other hand,64

suppose that the parties strike a

Coasean bargain that gives the dispensable party a cash payment.65

In this scenario, the opposition has an incentive to exclude the

dispensable party from the bargaining table66

: By definition, the

dispensable party is not needed to achieve efficiency.67

Therefore,

the remaining parties can still produce the efficient result in her

absence. This means that the size of the economic pie will remain

the same if the dispensable party is excluded from the bargaining

table. However, if the dispensable party is excluded from the

bargaining process, she will no longer receive any payments.68

In

other words, the opposition can take the payments that would have

gone to the dispensable party and divide them among themselves

instead. Consequently, the opposition wants to create transaction

costs that keep the dispensable party away from the bargaining

table.69

An example helps illustrate these points. Consider once

again a railroad whose track runs next to farmer Alice’s wheat

fields. The railroad’s locomotive emits sparks, and if these sparks

land in Alice’s wheat fields, the fields will ignite, which is

extremely costly. As before, we assume that there are only two

ways to avoid this problem: (1) the railroad can refrain from

running its train, at a cost to the railroad of $500, or (2) Alice can

plant her wheat far enough back from the track to ensure that errant

sparks will not ignite her fields, at a cost to her of $1000.

We now depart from our previous example by adding a

new person, Zelda. Zelda is a conservationist who owns

undeveloped, forested land that also abuts the train track. The

64

Note that, between the first and the second case, we cover all possibilities; the

parties’ Coasean bargain must either (1) provide for expected cash payments to

the dispensable party, or (2) not provide such payments. 65

In other words, assume that the cash payments that she receives from the other

parties to the Coasean bargain are larger than the cash payments that she must

make to other parties pursuant to the Coasean bargain. 66

More precisely, it is not just the opposition who has this incentive. Every

other party to the Coasean bargain will also wish to exclude the dispensable

party and capture some of the cash payments that the dispensable party would

have received. 67

See text accompanying note 61, supra. 68

See Companion Paper, supra note 11, at 4 n.5. 69

The precise incentives of each of the remaining parties to exclude the

dispensable party depend on how the payments that would have gone to the

dispensable party are divided among the remaining parties.

19

sparks emitted by the locomotive ignite dry brush on Zelda’s land.

However, from Zelda’s perspective, these sparks are a positive; the

regular train schedule produces many small fires that help clear

away dead underbrush and prevent large and dangerous forest fires

from developing on her property.70

If the train does not run, Zelda

can accomplish the same result by doing controlled burns on her

land, at a cost to her of $200.71

Thus, unlike Alice, Zelda reaps a

$200 benefit when the locomotive runs.72

Suppose that the law gives the railroad the right to emit

sparks. If there are no transaction costs, Alice and the railroad will

make a Coasean bargain in which Alice pays the railroad not to run

its train. This would produce an efficient result—not running the

train costs the railroad $500 and Zelda $200, but it provides Alice

a $1000 benefit.73

However, even if there are no structural transaction costs,

one or more of the parties will always have an incentive to

manufacture transaction costs. The dynamic that we describe

below applies regardless of how the parties divide up the gains

from bargaining; however, it is easiest to understand in the context

of a specific numerical example. We therefore assume, as before,

that the parties divide the gains produced by their Coasean bargain

evenly among themselves.74

Accordingly, Alice will pay $600 to

the railroad and $300 to Zelda, totaling $900, and will be able to

grow an additional $1000 worth of wheat. This leaves each party

$100 better off than they were before they struck their Coasean

bargain.75

70

Cf. U.S. FOREST SERV., MANAGING WILDLAND FIRES: PRESCRIBED FIRE,

available at fs.fed.us/fire/management/rx.html, last visited Feb. 23, 2014

(describing how, without periodic fires, certain ecosystems can become

unhealthy for flora and fauna and dangerous for people). 71

Cf. id. (describing how the U.S. Forest Service engages in prescribed fires to

ensure that certain lands do not go too long without a fire). 72

Many other similar examples can easily be constructed. For instance, Zelda

could be a bed-and-breakfast owner whose guests like to see the train go by. 73

The total cost of not running the train is $700 ($500 to the railroad and $200

to Zelda), which is $300 less than the $1000 benefit to Alice. 74

See text accompanying notes 29 and 30, supra. 75

The parties’ transaction produces $300 net gains, so splitting those gains

means giving each party a $100 benefit: Alice pays a total of $900 and receives

$1000 more wheat. Zelda receives $300 and loses a $200 benefit. The railroad

receives $600 and loses a $500 benefit.

20

Consider the Coasean bargain that would be struck without

Zelda’s participation, however. These circumstances are

essentially identical to those of an example discussed in Part II:

Alice and the railroad will split the $500 joint gains that they

receive from the transaction, leaving each $250 better off.76

Thus,

both Alice and the railroad are $150 better off if Zelda is excluded

from the Coasean bargain. Accordingly, they would each be

willing to pay up to $150 to create transaction costs that prevent

Zelda from participating in the bargaining process.

It is worth emphasizing that this dynamic does not depend

on the precise way that the parties divide the surplus: Zelda’s

participation is not necessary to achieve an efficient result. Thus,

if the Coasean bargain provides for any payment to Zelda, either

Alice, the railroad, or both are better off when Zelda is excluded

from the bargaining process. Hence, either or both Alice and the

railroad will create transaction costs for Zelda if possible.

The only circumstance under which neither Alice nor the

railroad will want to create transaction costs that keep Zelda away

is when Zelda does not receive any cash payments. However, in

such circumstances, Zelda will want to create transaction costs that

prevent Alice and the railroad from negotiating with each other: If

Alice and the railroad cannot negotiate, the railroad will run its

train. This will give Zelda $200 more in benefits that she receives

if Alice and the railroad negotiate a deal that does not provide

Zelda with a cash payment.77

Putting this all together, it will always be the case that

either (1) Alice and the railroad have an incentive to keep Zelda

away from the negotiating table, or (2) Zelda will have an

incentive to keep Alice and the railroad from negotiating with each

other.78

Even if there are no structural transaction costs, overall

76

See footnote 30, supra, and accompanying text. 77

If the railroad does not run the train and Zelda gets no cash payment, she nets

zero. If the railroad runs the train, Zelda gets a $200 benefit. 78

This situation has some similarities with, but is distinguishable from, the

problem of the empty core, which is well documented in the context of the

Coase Theorem. See, e.g., Yakar Kannai, "The Core and Balancedness", in 1

HANDBOOK OF GAME THEORY WITH ECONOMIC APPLICATIONS, 355–395

(Robert J. Aumann & Sergiu Hart, eds., 1992); Olga N. Bondareva, Some

Applications of Linear Programming Methods to the Theory of Cooperative

Games, 10 PROBLEMY KYBERNETIKI 119 (1963); Lloyd S. Shapley, On

Balanced Sets and Cores, 14 NAVAL RESEARCH LOGISTICS Q. 453 (1967); see

21

transaction costs may still be large because the parties will create

voluntary transaction costs if they can.

It is not difficult to come up with a bevy of real-world

scenarios in which an individual prefers to exclude other parties

with opposing interests. For instance, at auctions, bidders often

wish to exclude other would-be bidders in order to keep sale prices

lower.79

Similarly, producers are typically happy to increase their

market power by preventing competitors from having access to

their customers.80

More interestingly, the chief goal of many lawsuits is to

impose transaction costs on parties who are attempting to bring

about a result that the plaintiff does not like. These lawsuits’

purpose is to make it harder for the defendants to strike certain

bargains. Often, these lawsuits challenge the procedure through

which the defendants made the deal in question.81

Even when

also Varouj A. Aivazian & Jeffrey L. Callen, The Coase Theorem and the Empty

Core, 24 J.L. & ECON. 175 (1981); Ronald H. Coase, The Coase Theorem and

the Empty Core: A Comment, 24 J.L. & ECON. 183 (1981); Varouj A. Aivazian

& Jeffrey L. Callen, The Core, Transaction Costs, and the Coase Theorem,

CONST’L POL. ECON. (2003). 79

See, e.g., Robert C. Marshall & Michael J. Meurer, Bidder Collusion and

Antitrust Law: Refining the Analysis of Price Fixing to Account for the Special

Features of Auction Markets, 72 ANTITRUST L.J. 1 (2004); Katherine Sawyer,

Mobile Investor to Plead Guilty in Foreclosure Auction Bid-Rigging Scheme,

TIMES-PICAYUNE, Apr. 30, 2012, available at blog.al.com/live/2012/04/

mobile_investor_to_plead_guilt.html. 80

Agreements among competitors to divide territory geographically is illegal

under the Sherman Act. See, e.g., U.S. DEP’T OF JUSTICE, ANTITRUST

RESOURCE MANUAL § 8. 81

For example, environmental groups sometimes bring lawsuits to halt proposed

construction projects on the grounds that the developer has not undertaken

certain procedural steps, such as conducting legally mandated studies or

allowing sufficient opportunity for public comment. Similarly, parties

sometimes challenge the validity of new regulations issued by a government

agency on the ground that the agency did not follow the proper procedure, such

as giving notice to the public and allowing an appropriate amount of time for the

public to submit comments. See, e.g., Electronic Privacy Information Center v.

Dep’t of Homeland Security, 653 F.3d 1 (D.C. Cir. 2011) (ruling that the

Department of Homeland Security violated the Administrative Procedures Act

when it decided to screen airline passengers through advanced imaging

technology instead of magnetometers and remanding for further proceedings);

Lucia Graves, Groups Against Keystone XL Oil Pipeline Sue to Block

Construction, HUFFINGTONPOST.COM, Dec. 5, 2011, huffingtonpost.com/

2011/10/05/groups-sue-to-block-construction-of-keystone-xl_n_996075.html;

Suzanne Stevens, Environmental Groups Expand Lawsuit to Block Tesoro Oil

Terminal, SUSTAINABLE BUS. OREGON, Nov. 19, 2013, available at

sustainablebusinessoregon.com/articles/2013/11/environmental-groups-expand-

22

these suits succeed, the defendants can usually still proceed with

their deal, so long as they first engage in the required steps. In

some instances, the added cost and delay is sufficient to prevent

the project altogether.82

Other times, the plaintiff is able to extract

concessions from the defendants in exchange for dropping its

suit.83

This dynamic resembles the scenario in which

conservationist Zelda attempts to create transaction costs that keep

farmer Alice and the railroad from striking a deal.84

The parallels are easiest to see in the context of a specific

example. One of the biggest current issues in San Diego politics is

a $525 million proposed expansion of the city’s waterfront

convention center.85

In October, 2013, San Diego port and city

officials (the “San Diego officials”) received a necessary approval

for the project from the California Coastal Commission (the

“CCC”).86

The San Diego Navy Broadway Complex Coalition

(“SDNBCC”) then filed suit in an attempt to block the expansion

project from going forward.87

The SDNBCC’s legal challenge is

based on alleged procedural failings in the CCC’s approval

process.88

The SDNBCC opposes the expansion because it

lawsuit.html; Ty West, Lawsuit Filed to Block Northern Beltline Permit,

BIRMINGHAM BUS. J., Oct. 25, 2013, available at bizjournals.com/birmingham/

news/2013/10/25/northern-beltline-lawsuit-filed.html. 82

Cf. Lucian Arye Bebchuk et al., The Powerful Antitakeover Force of

Staggered Boards: Theory, Evidence, and Policy, 54 STAN. L. REV. 887, 904

927-29 (2002) (finding that, when anti-takeover devices extend the time

required to acquire a company to over one year, acquisitions do not happen);

Jordan M. Barry & John William Hatfield, Pills and Partisans: Understanding

Takeover Defenses, 160 U. PENN. L. REV. 633 (2012) (exploring the

implications of this dynamic). 83

See, e.g., MAYER BROWN, U.S. ENVIRONMENTAL LAWS INCREASINGLY LEAD

TO LITIGATION CONCERNING THE SITING AND OPERATION OF RENEWABLE

ENERGY PROJECTS (2010), available at mayerbrown.com/files/Publication/. 84

See Part III.A, supra. 85

See, e.g., Padma Nagappan, Convention Center Expansion Plans Mired in

Controversy, DAILY TRANSCRIPT, Aug. 30, 2012; James R. Riffel, Filner,

DeMaio Debate Convention Center Expansion Financing, KPBS.ORG, Oct. 3,

2012, kpbs.org/news/2012/oct/03/filner-demaio-debate-convention-center-

expansion-f/. 86

Lori Weisberg, Commission OKs Convention Expansion, SAN DIEGO UNION-

TRIBUNE, Oct. 10, 2013, available at utsandiego.com/news/2013/Oct/10/coastal-

commission-convention-expansion-plan-bay/. 87

Roger Showley, Convention Center Lawsuit Filed, SAN DIEGO UNION-

TRIBUNE, Nov. 25, 2013, available at

utsandiego.com/news/2013/nov/25/convention-center-expansion-lawsuit/. 88

See id. (identifying challenges to the approval process, including the failure to

consider alternative projects, according insufficient opportunity for public

comment, the CCC’s failure to issue a recommendation in a specific form at a

23

believes that the expansion will reduce the public’s access to the

San Diego Bay and have adverse effects on the environment.89

This example tracks our farmer/conservationist example

well.90

The SDNBCC resembles conservationist Zelda, the CCC

resembles the railroad, and the San Diego officials resemble farmer

Alice. Left to their own devices, the San Diego officials and the

CCC would proceed with the expansion project,91

just as Alice and

the railroad would reach an agreement not to run the train.92

The

SDNBCC, like Zelda, prefers the outcome when the parties do not

bargain93

over the bargain that will otherwise occur.94

Accordingly, the SDNBCC filed its lawsuit and created transaction

costs for the other parties. And, by creating those transaction

costs, the SDNBCC may be able to extract concessions from the

other parties95

—essentially equivalent to cash payments in our

stylized example.96

Many other real-world examples also fit this

general mold.97

Finally, note that the other parties’ incentives to exclude a

dispensable party stem from the cash payments that the

dispensable party receives. The larger those payments are, the

more incentive the other parties have to kick out the dispensable

party and divide up the payments that would have gone to her.

particular time, and some CCC members’ failure to disclose communications in

a timely fashion). 89

See Weisberg, supra note 86. 90

In analogizing to the farmer/conservationist example discussed above, we do

not mean to imply that the proposed expansion is efficient. We take no position

on that issue. 91

See Weisberg, supra note 86 (discussing the negotiations between the CCC

and San Diego officials). 92

See footnotes 30 and 76, supra, and accompanying text. 93

That is, the legal default rule. See footnote 217, supra, and accompanying

text. 94

See footnote 77, supra, and accompanying text. 95

For example, SDNBCC would likely prefer a prior proposal, which included a

large pedestrian bridge into the expansion. This option was rejected on the

grounds that it would be too costly, but that decision could potentially be

reversed. See Weisberg, supra note 86. 96

See Part III.A, supra. 97

A similar story could be told about the same project with respect to organized

labor instead of SDNBCC. Labor groups originally opposed the project and

threatened litigation, but changed their position after reaching an agreement with

the project’s contractor. See Lori Weisberg, Convention Center Labor Pact

Ignites Controversy, SAN DIEGO UNION-TRIBUNE, Nov. 12, 2012, available at

utsandiego.com/news/2012/Nov/12/convention-center-labor-pact-ignites-

controversy/.

24

Note also that the dispensable party is likely to receive larger

payments when the parties at the table divide up the gains from

their agreement more equitably.98

Hence, the incentives to exclude

dispensable parties from negotiations altogether become stronger

as the parties at the bargaining table allocate the benefits of the

transaction among themselves in a more egalitarian manner.

B. The Private Value of Transaction Costs for Oneself

There are also scenarios in which it is in a party’s best

interest to create transaction costs that keep her from participating

in any Coasean bargain. Consider once more our prior example

with a railroad that borders farmland. However, unlike our

previous example, suppose that there are now two farmers, Alice

and Bob, whose wheat fields abut the train tracks. As before, not

running the train will cost the railroad $500, and it will cost Alice

and Bob $1000 each to plant their crops away from the tracks.

Assume that the law gives the railroad the right to emit

sparks from its locomotive. In the absence of any agreement, the

farmers will be forced to plant back from the tracks. However, the

Coase Theorem predicts that, as long as there are no transaction

costs, this will not happen: Because planting back from the tracks

costs Alice and Bob more than it would cost the railroad not to run

the train, Alice and Bob should pay the railroad not to run the train.

Assuming once more that the parties evenly divide the gains

produced by their agreement,99

Alice and Bob each pay the

railroad $500,100

leaving each party $500 better off than she would

be in the absence of an agreement.101

So far, having three actors in our example instead of two

has not had much effect. The basic transaction is the same: The

farmer buys off the railroad, just as in our original example.102

The

98

The dispensable party is receiving cash payments, even though her

participation is not necessary to achieve efficiency; thus, she is receiving a share

of the gains, even though she did nothing to create those gains. 99

See text accompanying notes 29 and 30, supra. 100

The exact split is not important to our conclusions; it simply facilitates and

clarifies the analysis somewhat. 101

The railroad loses $500 by not running the train, but receives $1000 cash

from the farmers, for a net profit of $500. Alice and Bob each pay $500, but

earn $1000 in additional profit from growing additional wheat. 102

See footnotes 28-30, supra, and accompanying text.

25

only difference is that now there are two farmers who team up to

buy off the railroad instead of one farmer acting alone.

Now suppose that Bob faces high transaction costs: In

order to be party to any agreement, Bob must pay $2000. The

most that Bob can hope to benefit under a Coasean bargain is

$1500, the net value produced from not running the train.103

Because that is less than the $2000 cost that Bob must incur to

make any agreement, it is never in Bob’s interest to participate in

any transaction. Bob should never come to the negotiating table.

Taking Bob out of the picture leaves just Alice and the

railroad. Because Alice’s gains from planting additional wheat

($1000) exceed the benefit that the railroad receives from running

the train ($500), Alice should still buy off the railroad without

Bob’s involvement: As long as Alice pays the railroad more than

$500 and less than $1000 not to run the train, both she and the

railroad will be better off.104

Three things are worth noting here. First, even without

Bob’s involvement, the parties have resolved the legal entitlements

question in the same way; the train does not run in either scenario.

Second, even though Bob has not participated in the

negotiation, he still benefits from its results: By not running its

train, the railroad protects both Alice’s and Bob’s fields from

sparks and enables them both to plant more wheat; the same track

and the same trains run (or do not run) by both farms. Thus, Bob

will still pocket $1000 in profits from growing wheat near the

track. Bob’s lack of involvement in the negotiation has not made

the bargaining outcome any less favorable to him.

Third, by not participating in the agreement, Bob has

avoided having to make any payments to the railroad. This leaves

Bob $500 better off than he was in the previous example, in which

he grew the same amount of wheat but paid $500 to the railroad.

103

If he receives any more than $1500, at least one of the other parties to the

agreement must be paying out more money than she receives in benefits from

the transaction. Accordingly, that party would be better off rejecting the

Coasean bargain. 104

Applying the same criteria as in our prior example, we would expect Alice to

pay the railroad $750, leaving both her and the railroad with a gain of $250 from

the transaction.

26

Thus, the $2000 transaction costs that Bob faced have left

him $500 better off. And, although Bob benefits from these

transaction costs, Alice and the railroad suffer. Since Bob now

keeps $1000 of the gains created by the transaction, Alice and the

railroad have only $500 in gains left to split between them.

Because Bob is better off with the $2000 transaction costs

than without them, he prefers when they are present. Moreover, if

they are not present, Bob will have a strong incentive to

manufacture them, and would happily pay up to $500 to do so.105

The phenomenon of individuals intentionally making

themselves unavailable will be familiar to most people who have

been tasked with rounding up volunteers to serve on an office

committee, or who have tried to get roommates to help clean up

the common areas of an apartment.106

This dynamic also applies to

fundraising for public goods, such as parks or fireworks

displays;107

indeed, the difficulty of collecting voluntary

contributions for public goods is one of the chief economic

justifications for empowering governments to levy and collect

taxes.108

It is worth noting that this same dynamic can also affect

negotiations between governments. For example, countries often

enter into multilateral treaties as a way to take coordinated action

toward a common goal. For instance, environmental treaties, in

which signatories commit to taking coordinated action to reduce

pollution, often fit this mold.109

These treaties generally require

taking actions that are economically costly.110

From the

105

On the other hand, Alice and the railroad would be willing to pay up to $500

to eliminate Bob’s transaction costs. 106

All of these problems are essentially free-rider problems. See MANCUR

OLSON, THE LOGIC OF COLLECTIVE ACTION (1965). 107

See id. 108

See VARIAN, supra note 12, at 605-26. 109

See, e.g., UNITED NATIONS, FRAMEWORK CONVENTION ON CLIMATE

CHANGE, KYOTO PROTOCOL (1997), available at unfccc.int/kyoto_protocol/

items/2830.php. (reducing emissions); UNITED NATIONS, MONTREAL PROTOCOL

ON SUBSTANCES THAT DEPLETE THE OZONE LAYER (1997), available at

ozone.unep.org/new_site/en/ (phasing out production of ozone-depleting

substances); UNITED NATIONS, PROTOCOL ON FURTHER REDUCTION OF SULPHUR

EMISSIONS (1994), available at unece.org/env/lrtap/fsulf_h1.html (reducing

emissions to combat acid rain). 110

See FRANK, supra note 26, at 177 (“Firms don’t pollute because they derive

pleasure from doing so. They do it because removing pollution costs money.”).

27

perspective of an individual country, it may be advantageous to

refrain from joining the treaty; doing so may enable that country to

avoid incurring costs, even as it reaps the benefits from the other

signatories’ actions.111

Many other international compacts also

exhibit this dynamic, such as those establishing trade sanctions,112

sovereign debt bailouts,113

contributions to international

peacekeeping forces,114

or banking transparency.115

This dynamic can also arise within a country that has a

federalist form of government. Consider a beneficial infrastructure

project that will be located in a particular city. That city is

contained within a county, which is contained within a state, which

is contained with the nation. Each level of government has an

interest in the project being completed. However, each has a

limited amount of funds at its disposal. Thus, each governmental

entity would prefer that the others fund the project. Accordingly,

each government may endeavor to keep itself away from the

negotiating table in order to force the other governments to commit

the necessary funds.

The dynamic explored throughout this Subpart is, in many

ways, the flipside of the dynamic underlying our analysis in Part

III.A. Here, Bob is a dispensable party—his participation is not

needed to reach the efficient outcome—just like Zelda was there.

The difference between Bob and Zelda is that Zelda preferred an

inefficient outcome; thus, she would not contribute cash payments

to the Coasean bargain, and the other parties were happy to

exclude her. Bob, in contrast, prefers the efficient outcome.

Accordingly, he is theoretically willing to make cash payments to

bring it about. But, if he can avoid coming to the table, he can

avoid spending his own money and free-ride off of Alice’s

contributions. Consequently, Bob wishes to exclude himself.

111

See Dixit & Olson, supra note 9 (illustrating this dynamic). 112

Cf. Howard LaFranchi, What Do Iran Sanctions Cost You?, CHRISTIAN

SCIENCE MONITOR, Apr. 5, 2012 (discussing the cost to U.S. citizens of

imposing sanctions on Iran). 113

See Jack Ewing, Germany Resists Europe’s Pleas to Spend More, N.Y.

TIMES, Jan. 8, 2012. 114

See David Bosco, The Price of Peace, FOREIGN POLICY, May 29, 2013. 115

See ORGANISATION FOR ECONOMIC COOPERATION & DEVELOPMENT,

CONVENTION ON MUTUAL ASSISTANCE IN TAX MATTERS (2011), available at

oecd.org/tax/exchange-of-tax-information/.

28

Combining the results of Parts III.A and III.B, we see that

when there are dispensable parties, individuals will generally want

to create transaction costs. If a dispensable party favors an

inefficient result, the other parties will wish to create transaction

costs for her.116

If a dispensable party favors an efficient result,

then she will wish to create transaction costs for herself.117

The combined effect of these two dynamics is that parties

will frequently have incentives to create transaction costs. As we

demonstrate below, this has important consequences.

C. Voluntary Transaction Costs and Inefficiency

The possibility that parties may voluntarily create

transaction costs imposes significant additional limitations on the

circumstances in which the Coase Theorem’s predictions apply.118

Consequently, even when there are no structural transaction costs,

voluntary transaction costs may prevent the parties from

contracting their way to an efficient result. In these circumstances,

legal rules may determine whether the parties reach an efficient

outcome.

In our previous examples illustrating voluntary transaction

costs, the parties generally reached an efficient result, regardless of

the legal rule.119

In Part III.A, no matter the legal rule, excluding

the dispensable parties from negotiations did not endanger the

efficient result.120

Nor did the legal rule affect efficiency in Part

III.B; Alice and the railroad negotiated an efficient result even

when Bob opted out of negotiations.121

In both instances, the key

116

By the same token, the dispensable party will be willing to pay to eliminate

transaction costs that keep her away from the table. 117

Similarly, the other parties to the Coasean bargain will be willing to pay to

eliminate transaction costs that keep the dispensable party away from the table. 118

Shades of this point have been made in the literature. See Calabresi &

Melamed, supra note 4 (stating that zero-transaction-cost assumption must

imply full knowledge of reservation prices to address freeloading); Dixit &

Olson, supra note 9 (considering the free-rider dynamic in a specific context). 119

This is not quite accurate. In the farmer/conservationist example explored in

Part II.A, if Zelda creates transaction costs that prevent the other parties from

coming to the table, the parties do not achieve an efficient result. 120

See note 76, supra, and accompanying text. 121

See note 104, supra, and accompanying text.

29

predictions of the Coase Theorem persisted. Legal rules, and the

addition of new transaction costs, had only distributional effects.122

However, this is not always the case. There are instances

in which creating transaction costs produces net benefits for the

party creating them, but shrinks the size of the economic pie

overall. Voluntary transaction costs can create inefficiencies just

like any other transaction cost can.

We first illustrate this point with a scenario in which parties

have incentives to impose transaction costs on themselves. We

once again assume that railroad tracks run next to the wheat fields

of two farmers, Alice and Bob. The tracks are parallel to each

other, so that one track (the “near track”) is closer to the farmers’

fields and the other track (the “far track”) is farther away. The

railroad can run trains, which emit sparks, on either or both tracks.

If the trains run, the farmers must plant back from the tracks to

prevent errant sparks from igniting their fields. The farmers must

plant further back from the tracks, and incur greater opportunity

costs from forgone wheat, if a train runs on the near track than if a

train runs on the far track.

Assume that, if the railroad runs trains on both tracks, Bob

and Alice must each forgo planting $1000 of wheat. If trains only

run on the far track, Alice and Bob can plant most of the way to the

tracks, letting each of them earn $650 more from growing wheat

than they could if trains ran on both tracks. Further assume that

running trains on both tracks gives the railroad $800 in benefits,

and that running trains on only one track gives the railroad $400 in

benefits.123

Table 1, below, summarizes these results.124

122

See notes 76 and 105, supra, and accompanying text. 123

Equivalently, the railroad gets $400 for each track on which it runs trains. 124

We assume that the railroad does not choose to run a train on only the near

track; i.e., it is a good neighbor. But cf. Daniel B. Kelly, Strategic Spillovers,

111 COL. L. REV. 1641 (2011) (arguing that parties sometimes intentionally take

actions that produce negative externalities in order to extract payments from the

negatively affected individual in exchange for abating the harmful activity).

30

TABLE 1

Value

to Alice

Value

to Bob

Value to

Railroad

No Trains Run $1000 $1000 $0

Trains Run on

Far Track Only $650 $650 $400

Trains Run on

Both Tracks $0 $0 $800

As in our previous example, the efficient result is for the

railroad not to run any trains; doing so creates $2000 of value for

the parties to divide amongst themselves.125

This is more than both

the $1700 of value created by only running trains on the far track

and the $800 of value created from running trains on both tracks.126

But, if Bob has the ability to impose transaction costs on himself,

the result that the parties achieve will depend on the legal rule.

Consider first what happens if the farmers are legally

entitled to not have sparks on their land. In this circumstance,

there is no agreement to be struck: Alice and Bob would demand

that the railroad pay them a combined total of at least $700 before

they would allow the railroad to run trains on the far track, but the

railroad would not be willing to pay more than $400 for that

right.127

Similarly, Alice and Bob will only allow the railroad to

run trains on both tracks if they receive a payment of at least

$2000. That amount is far more than the $800 that the railroad

might be willing to pay them for that right. Accordingly, the

parties will achieve an efficient result. All of the surplus will

125

This can be seen by adding the values in the top row of Table 1.

Equivalently, this is the sum of the $1000 that Alice and Bob each receive from

planting additional wheat and the $0 value that the railroad receives from not

running any trains. 126

See Table 1, supra. 127

See Table 1, supra.

31

accrue to Bob and Alice, and Bob will not choose to create

transaction costs.128

Next, consider what happens if the law gives the railroad

the right to run trains on the far track only. It is in Alice and Bob’s

joint best interests to induce the railroad not to run any trains;

doing so will enable them to earn $700 more in profits.129

Not

running the train on the far track costs the railroad $400. Thus,

there is the potential for the farmers and the railroad to make an

agreement that leaves each party better off.

But this agreement is only possible if both Alice and Bob

participate in negotiations. The railroad reaps a $400 benefit from

running the train on the far track, so it will not agree to cease doing

so unless it receives a cash payment of at least $400.130

Each

individual farmer reaps only $350 in benefits from the train not

running; accordingly, neither individual farmer will be willing to

pay the railroad enough to induce the railroad to stop running the

train.

Thus, if Bob creates transaction costs, Alice and the

railroad will not strike any further agreements. The railroad will

run the train on the far track, and Bob will get $650.

On the other hand, if Bob chooses to participate in the

negotiations, he and Alice can jointly induce the railroad not to run

any trains, creating additional surplus. Assuming, as previously,131

that the parties divide this surplus evenly among themselves, Alice

and Bob will each pay the railroad $250 not to run the train.132

In

this scenario, Bob pays out $250 to the railroad, but gets to plant

an additional $350 worth of wheat, leaving him with $750 of

value.133

As this is more than the $650 of value that he receives

when he does not participate in negotiations, Bob will prefer to

participate.

128

More precisely, if Bob can create transaction costs at no cost to himself, he

will be indifferent between creating them and not. In either event, there is no

deal to be struck even in the absence of transaction costs, so the effect is the

same. 129

See Table 1, supra. 130

See Table 1, supra. 131

See text accompanying notes 29 and 30, supra. 132

Each of Alice and Bob pays $250 for a $350 benefit. The railroad loses a

$400 benefit but receives $500 in payments. 133

See Table 1, supra.

32

Thus, when the law gives the railroad the right to run trains

on the far track only, Bob will choose not to create transaction

costs and will instead choose to join Alice in negotiating with the

railroad. In fact, Bob might now be willing to pay up to $300 to

eliminate transaction costs that keep him away from the

negotiating table.134

This legal rule will result in the railroad not

running the train, the efficient result.

Finally, suppose that the law permits the railroad to run

trains on both tracks. Under this rule, the parties will never reach

an agreement under which the railroad does not run any trains.135

Striking a Coasean bargain in which the farmers pay the railroad

not to run any trains creates $1200 of value.136

As discussed

above, this agreement is only possible if all three parties come to

the table.137

Since we assume that the parties evenly divide up the

surplus that their bargaining creates, Bob and Alice will each net

$400,138

as will the railroad.139

Alternatively, if Bob faces high transaction costs that

prevent him from participating in the agreement, Alice will be left

to negotiate with the railroad on her own. In that case, Alice will

pay the railroad not to run trains on the near track, as that lets Alice

plant an additional $650 of wheat but only costs the railroad

$400.140

But Alice will not be willing to pay the railroad not to run

any trains: Such an agreement would allow Alice to plant $350

more wheat than if trains only run on the far track. However, she

must pay the railroad an additional $400 not to run any trains.

Thus, if Bob is removed from the negotiating table, Alice and the

134

There is potentially $300 of surplus to be gained from having the railroad run

no trains instead of running trains on the far track only. See Table 1, supra. As

shown below, this surplus will not be realized unless Bob participates in the

agreement. Thus, Bob might potentially be willing to pay up to $300 to be

involved in the agreement. 135

More specifically, the parties will never reach such an agreement if Bob is

rational and Alice and the railroad play subgame-perfect strategies. See

Companion Paper, supra note 11, at § 2.1. 136

Without a bargain, the railroad will run trains on both tracks, creating $800 of

value. With a bargain, no trains will run, producing $2000 of value, an increase

of $1200. See Table 1, supra. 137

See text accompanying notes 130-131, supra. 138

This corresponds to each paying the railroad $600 not to run the train. 139

The railroad will receive $1200 and will forgo the $800 benefit it would

receive from running its train, leaving it $400 better off as well. 140

See Table 1, supra.

33

railroad will reach an agreement under which the railroad will run

trains on the far track only.

Accordingly, if Bob faces prohibitive transaction costs that

prevent him from participating in an agreement, he will be able to

grow $650 worth of wheat. This is less than the $1000 worth of

wheat that he is able to grow when he participates in the

agreement. However, when he does not participate in the

agreement, Bob does not have to make any payments to the

railroad. This means that his $650 in additional wheat is all profit,

making Bob $250 better off than he is when he teams up with

Alice to negotiate with the railroad. Bob would therefore be

willing to pay up to $250 to create transaction costs—even though

his leaving the table costs Alice and the railroad a combined total

of $550 and leads to an inefficient outcome.141

Table 2 summarizes these results. When voluntary

transaction costs are possible, the legal rule affects Bob’s choice

and the efficiency of the final outcome. Thus, when there are

voluntary transaction costs, the choice of legal rule becomes

crucial; the Coase Theorem and its underlying logic simply do not

apply.

141

As noted above, if Bob comes to the table, each party gets $400 of the gains

created by the Coasean bargain. Thus, Alice and the railroad receive $800

surplus between them. If Bob leaves the table, Alice and the railroad will split

$250 in surplus between them. Accordingly, Bob’s leaving the table costs Alice

and the railroad a combined total of $550, more than twice the amount that Bob

gains by opting out of the agreement.

34

TABLE 2

Railroad’s

Legal Right

Voluntary

Transaction

Costs?

Ultimate

Result

Efficient

Result?

Can Run

Trains on

Both Tracks

Bob Will Pay

to Create

Train Runs

on Far Track No

Can Run

Trains on Far

Track Only

Bob Will Pay

to Remove No Trains Run Yes

Cannot Run

Trains on

Either Track

Bob Is

Indifferent142

No Trains Run Yes

We emphasize that this result—that, when the law gives the

railroad the right to run trains on both tracks, it is not in each

party’s best interests to come to the table and strike an efficient

Coasean bargain—holds no matter how the parties divide up the

gains from their agreement.

To see this, suppose that both of the farmers and the

railroad each has the ability to create transaction costs that keep

themselves away from the negotiating table. In any scenario in

which all three parties come to the table and reach an efficient

agreement, the farmers must compensate the railroad for the value

it loses by not running any trains. That means the railroad must

receive cash payments from the farmers totaling at least $800.143

This means that at least one of the farmers must make a cash

payment of $400 or more;144

for simplicity, assume that that farmer

is Bob.145

The parties’ Coasean bargain enables Bob to plant an

142

See discussion in footnote 128, supra. 143

See Table 1, supra. 144

If both farmers were making cash payments of less than $400, then the sum

of both farmers’ payments would be less than $800. A payment of that size is

not large enough to induce the railroad not to run any trains. 145

This assumption produces no loss of generality; Bob and Alice are identically

situated, so the analysis is the same if Alice pays at least $400 instead of Bob.

35

additional $1000 of wheat, and requires him to make a payment of

at least $400. Thus, Bob gets, at most, $600 in net value from the

parties’ Coasean bargain.146

Consider instead what happens if Bob does not come to the

negotiating table. Without Bob, Alice will still want to negotiate

with the railroad: running trains on the near track costs Alice $650

in forgone wheat, but only gives the railroad $400 in benefits. It is

therefore in both Alice’s and the railroad’s interests to make an

agreement under which Alice pays the railroad between $400 and

$650 not to run any trains on the near track. Because the near

track runs next to both Alice’s farm and Bob’s farm, this

agreement will also allow Bob to plant $650 of additional wheat.

This is less than the $1000 in wheat that Bob can plant when no

trains run. However, this $650 is all profit for Bob; he does not

need to make any cash payments to secure it. Thus, Bob is better

off creating transaction costs that keep him away from the table.

Accordingly, it is never in all parties’ best interests to come

to the negotiating table. But, when the law gives the railroad the

right to run trains on both tracks, the parties can only achieve an

efficient result when they all participate in negotiations. Thus,

when parties have the ability to create large transaction costs for

themselves, the parties will never achieve an efficient result under

this legal regime.147

This Subpart’s analysis has been built around scenarios in

which individuals want to keep themselves away from the

negotiating table. Similar dynamics apply to scenarios in which

individuals want to keep other parties away from the negotiating

table.

For example, consider again the farmer/conservationist

scenario described in Part III.A, supra. Once again, we assume

that running the train creates benefits of $500 for the railroad and

$200 for conservationist Zelda, and creates costs of $1000 for

farmer Alice. Further suppose that there is a hill on the edge of

Zelda’s property that is prone to occasional, small mudslides.

146

Bob gets $1000 of extra wheat and must pay at least $400; thus, he nets at

most $600. 147

This assumes that the parties have an injunctive remedy. See Part IV.B,

infra.

36

When these mudslides happen, mud lands on farmer Alice’s

property and destroys $10 worth of wheat. If she chooses, Zelda

can stop these mudslides, thereby ending the destruction of Alice’s

wheat, at a cost of $5.148

If Zelda is excluded from negotiations, she will not stop the

mudslides, which is inefficient. However, the potential value lost

to this inefficiency ($5) is smaller than the cash payment that Zelda

receives from the other parties if she participates in the Coasean

bargain (≈$300).149

Accordingly, it is still in Alice’s and the

railroad’s interests to exclude Zelda from negotiations, even

though doing so results in inefficiency.

Both the two-farmer and the farmer/conservationist

examples described above share an important feature. In each

instance, there are three possible outcomes: The legal default

outcome and two alternatives. The legal default is the least

efficient outcome;150

both alternatives—the “efficient outcome”151

and the “intermediate outcome”152

—are more efficient than the

legal default.153

Moreover, the efficiency gains from moving from

the legal default to the intermediate outcome are larger than the

incremental gains from moving from the intermediate outcome to

the efficient outcome.154

Thus, creating transaction costs will often

benefit a party if doing so helps her to secure a larger share of the

gains produced by moving to the intermediate outcome—even if

148

For example, Zelda could build a wall to reinforce the hill or catch the mud

before it lands on Alice’s property. 149

Fixing the mudslide problem saves $10 of wheat at a cost of $5, producing $5

in net gains. Zelda receives a $300 payment when the parties split the gains

from their agreement; see note 75, supra, and accompanying text. 150

In the two-farmer example, the legal default is trains running on both tracks.

In the farmer/conservationist example, the default is running the train and not

fixing the mudslide-prone hill. 151

In the two-farmer example, the efficient outcome is no trains running. In the

farmer/conservationist example, the efficient outcome is no trains running and

fixing the mudslide-prone hill. 152

In the two-farmer example, the intermediate outcome is trains running on the

far track. In the farmer/conservationist example, the efficient outcome is no

trains running and not fixing the mudslide-prone hill. 153

See Table 1 and footnote 149 and accompanying text, supra. 154

In the two-farmer example, moving from the legal default to the intermediate

outcome produces $900 of value; moving from the intermediate outcome to the

efficient outcome produces $300 of value. See Table 1, supra. In the

farmer/conservationist example, moving from the legal default to the

intermediate outcome produces $300 of value; moving from the intermediate

outcome to the efficient outcome produces $5 of value.

37

those transaction costs prevents an efficient Coasean bargain.155

In

such circumstances, the parties achieve most of the potential social

gains (the intermediate outcome) but fall short of the full social

gains available (the efficient outcome).156

For our purposes, the key point is that these circumstances

are likely to arise with great frequency: Parties often have multiple

ways in which they can accomplish a particular goal, and they

generally select the most cost-effective options first.157

Thus, the

dynamic described above—in which the efficiency gained by

moving to an intermediate outcome exceeds the incremental

efficiency gained by moving from an intermediate outcome to the

efficient outcome—is likely to occur frequently. In other words,

the first steps toward the efficient result will often produce the

largest net benefits.158

Accordingly, parties may often wish to

create voluntary transaction costs.

For example, voluntary transaction costs play a critical role

in the behavior of creditors when a borrower suffers a financial

decline. This topic has been the subject of considerable recent

attention from scholars, practitioners, and journalists.159

155

See notes 141 and 149, supra, and accompanying text. 156

This dynamic is distinct from the problem of the empty core. See, e.g., Yakar

Kannai, "The Core and Balancedness", in 1 HANDBOOK OF GAME THEORY WITH

ECONOMIC APPLICATIONS, 355–395 (Robert J. Aumann & Sergiu Hart, eds.,

1992); Olga N. Bondareva, Some Applications of Linear Programming Methods

to the Theory of Cooperative Games, 10 PROBLEMY KYBERNETIKI 119 (1963);

Lloyd S. Shapley, On Balanced Sets and Cores, 14 NAVAL RESEARCH

LOGISTICS Q. 453 (1967); see also Varouj A. Aivazian & Jeffrey L. Callen, The

Coase Theorem and the Empty Core, 24 J.L. & ECON. 175 (1981); Ronald H.

Coase, The Coase Theorem and the Empty Core: A Comment, 24 J.L. & ECON.

183 (1981); Varouj A. Aivazian & Jeffrey L. Callen, The Core, Transaction

Costs, and the Coase Theorem, CONST’L POL. ECON. (2003). 157

This principle is sometimes called the low-hanging-fruit principle. The

analogy is to fruit-pickers harvesting the most easily accessible fruit first before

going after fruit that is harder to access. See ROBERT H. FRANK & BEN S.

BERNANKE, PRINCIPLES OF MICROECONOMICS 46-47 (2d ed. 2004). 158

Formally, this will not always be the case. There are circumstances in which

this dynamic may not hold, such as when the returns from an activity are

convex. However, it is generally believed (and assumed) that such scenarios are

relatively rare. See id. 159

See, e.g., Henry T.C. Hu & Bernard Black, Debt, Equity and Hybrid

Decoupling: Governance and Systemic Risk Implications, 14 EUR. FIN. MGMT

663 (2008); Theresa Einhorn, 28th Annual Review of Developments in Business

Financing: Current Trends in the Corporate Debt Market and Credit

Derivatives, 2010 AM. BAR ASSOC. SEC. BUS. L. 1, available at

haynesboone.com/files/Publication/; Daniel Gross, The Scary Rise of the

“Empty Creditor”, MONEYBOX, SLATE.COM, Apr. 21, 2009; Dante Altieri

38

Historically, when homeowners or profitable businesses have

found themselves overextended and unable to pay their debts, they

have negotiated agreements with their creditors.160

These

agreements generally provide for the debt to be repaid over a

longer period of time than originally contemplated,161

and they

often reduce the total amount of debt outstanding.162

For their part,

creditors generally agree to receive less than they are legally

entitled to receive because, by doing so, they ultimately receive

more money than they would if they strictly enforced the original

terms of their loans: In the case of the homeowner, she would

likely abandon the house, leaving the creditor with an asset she

would have to liquidate, which could be a difficult, costly, and

lengthy process.163

With respect to the business, if the creditors

stand on their rights they will force a profitable company out of

business, ultimately resulting in the creditors receiving less money

than if they had agreed to a reduction or a restructuring of debt.

These scenarios are classic Coasean bargains: The

creditors have a legal right to certain payments at certain times.

The creditors and the borrower come to the table and work out an

agreement. Pursuant to that agreement, the creditors relinquish

some of their legal rights. This produces significant gains for the

Marinucci, Empty-Creditor Syndrome and Vivisepulture: Preventing Credit-

Default-Swap Holders from Pushing Companies into Premature Graves by

Refusing to Negotiate Restructurings, Comment, 62 CASE W.L. REV. 1285,

(2012); András Danas, Do Empty Creditors Matter? Evidence from Distressed

Exchange Offers, wpweb2.tepper.cmu.edu/wfa/wfasecure/upload/

2012_PA_952361_202294_910787.pdf; SUMIT AGARWAL ET AL., FED. RES.

BANK OF CHICAGO, THE ROLE OF SECURITIZATION IN MORTGAGE

RENEGOTIATION, Working Paper 2011-02, available at chicagofed.org/

digital_assets/publications/working_papers/2011/wp2011_02.pdf; Tomasz

Piskorski et al., Securitization and Distressed Loan Renegotiation: Evidence

from the Subprime Mortgage Crisis, 97 J. FIN. ECON. 369 (2010); Eric A. Posner

& Luigi Zingales, A Loan Modification Approach to the Housing Crisis, 11 AM.

L. & ECON. REV. 575 (2009); Christopher Mayer, Housing, Subprime

Mortgages, and Securitization: How Did We Go Wrong and What Can We

Learn So This Doesn’t Happen Again?, Testimony in front of the U.S. Financial

Crisis Inquiry Commission (2010); Samuel Kruger, The Effect of Mortgage

Securitization on Foreclosure and Modification, available at

scholar.harvard.edu/skruger/ions/effect-mortgage-securitization-foreclosure-

and-modification (last visited Feb. 24, 2014). 160

See BETHANY MCLEAN & JOE NOCERA, ALL THE DEVILS ARE HERE: THE

HIDDEN HISTORY OF THE FINANCIAL CRISIS 308 (2010) 161

Id. 162

Id. 163

Jacoby & Janger, supra note 3, at 894.

39

borrower that exceed the losses to the creditors.164

The agreement

grows the size of the economic pie, ultimately allowing the

creditors to receive more money than they would have received if

they insisted on enforcing the letter of their agreements.165

That said, it is not necessary for every creditor to relinquish

some of its rights; it is only necessary that the buyer’s debt be

restructured in a way that allows it to stay in business and keep

earning profits. An individual creditor receives the most money

when she refrains from restructuring the debt that she holds while

the other creditors restructure theirs. Thus, if a creditor can

prevent herself from coming to the table, she can avoid having to

make concessions, benefiting herself at the expense of the debtor

and the other creditors. In recent years, creditors’ increasing use of

two particular investment techniques—both of which have the

effect of keeping creditors away from the negotiating table when

the borrower wants to restructure its debt—has drawn a

considerable amount of attention.

First, creditors have increasingly purchased large amounts

of credit default swaps on the debt that they are owed. 166

Credit

default swaps resemble insurance policies; the holder of a credit

default swap is entitled to receive a payment from a third party if

the borrower in question does not meet all of its obligations under

a particular debt instrument.167

These credit default swaps do not change the value of

arranging a loan modification for the distressed debtor; they

164

See id. at 892-93. 165

See id. 166

In several recent instances, creditors have acquired credit default swaps that

were as large as the debt they held or even larger. See, e.g., Einhorn, supra note

159 (discussing similar situations involving General Motors, YRC Worldwide,

and Gannett Co.); Martin Hutchinson, Ban Credit Default Swaps? These

Corporate Bankruptcies Show We Should, MONEY MORNING, Apr. 23, 2009,

moneymorning.com/2009/04/23/ban-credit-default-swaps/ (discussing similar

situations at AbitibiBowater Inc. and General Growth Properties Inc.); Adam

Reiser, An Economic Analysis and Legal Framework for Credit Default Swap

Regulation, 14 N.C. BANKING INST. 101, 120-21 (2009), available at

law.unc.edu/documents/journals/ncbank/balancesheet/ (discussing a similar

situation involving Tower Automotive); Loren Steffy, Some Bondholders Bank

on Bankruptcy, HOUSTON CHRON., Jul. 21, 2009, chron.com/business/steffy/

article/Some-bondholders-bank-on-bankruptcy-1622890.php (discussing similar

situations involving Six Flags). 167

See FRANK PARTNOY, INFECTIOUS GREED 372-73 (2009).

40

merely change which parties reap gains and bears costs from a

modification.168

However, they do increase the number of parties

who have a stake in the debtor’s solvency; by entering into a credit

default swap, the creditor essentially distributes part of her interest

in the debt to her counterparty.169

This means that more parties

must be brought to the negotiating table to resolve the issues

pertaining to that creditor’s debt.170

In other words, by entering

into credit default swaps, the creditor can raise the transaction

costs of modifying the debt that she holds.171

This can make it

hard for her to come to the table, leaving the other creditors to

make larger sacrifices.172

Second, creditors have increasingly divided their interests

among a larger number of parties, making it more difficult and

unwieldy for them to participate in a deal. The most visible

example of this in recent years is the securitization of residential

mortgages.173

Historically, these mortgages were held by the bank

that made the loan.174

If a homeowner became unable to pay, she

could go to that bank directly and try to negotiate a

modification.175

Securitized mortgages, in contrast, are packaged

168

Every payment that the creditor receives from her counterparty is an equal

benefit to the creditor and cost to the counterparty, and vice versa. 169

Taken to its extreme, a creditor can divest herself of any economic interest in

a debtor. Such creditors are sometimes referred to as empty creditors, because

they retain legal rights to payments from the debtor but have emptied out their

economic interest. See, e.g., Hu & Black, supra note 159, at 709; Gross, supra

note 159; see also Jordan M. Barry et al., On Derivatives Markets and Social

Welfare: A Theory of Empty Voting and Hidden Ownership, 99 VA. L. REV.

1103 (2013) (discussing decoupling strategies more generally). 170

For example, suppose that a creditor has a claim to $1 million in payments

from the borrower, then enters into credit default swaps on $100,000 of that debt

with nine counterparties. Before the creditor entered into those transactions,

assembling all of the people with an interest in that $1,000,000 payment being

made simply meant bringing the creditor to the table. After those transactions,

accomplishing the same result required bringing in the creditor and all nine

counterparties. 171

This is especially true when she enters into credit default swaps with multiple

different counterparties. 172

To be sure, there are other reasons why creditors might wish to purchase

credit default swaps on the debt they owe. For example, there are regulatory and

risk-management benefits. See PARTNOY, supra note 167, at 374-77; IVO

WELCH, CORPORATE FINANCE 129-30 (2d ed. 2011). Credit default swaps can

also reduce the frequency of socially inefficient strategic defaults by borrowers.

See Patrick Bolton & Martin Oehmke, Credit Default Swaps and the Empty

Creditor Problem, 24 REV. FIN. STUD. 2617 (2011). 173

See MCLEAN & NOCERA, supra note 160, at 308. 174

Id. 175

Id.

41

together in large quantities, made into bonds or other securities,

and sold off to various investors in pieces.176

Often, these various

securities have differing cash flow rights.177

Both the number of

holders and their varied interests substantially complicate

restructuring negotiations.178

This encourages individuals to

restructure their other debts instead of their mortgages, which can

redound to the benefit of the mortgage lender.179

Staying away from debt renegotiations is often good for

individual lenders, but it is quite costly for society more

generally.180

When it is unclear whether a business will be able to

continue operations, employees—especially those with the best

outside options—start to leave.181

Customers may abandon a

company if they are worried about its ability to support a product

over the long-term.182

Suppliers demand higher prices and greater

contractual protections.183

All of these effects can produce a

downward spiral that can sink an otherwise viable business.184

Thus, it is better to renegotiate a company’s outstanding debts

sooner rather than later.185

Yet in a number of large and high-

profile examples—including AIG,186

Chrysler,187

General

176

See GERALD P. DWYER, FED. RES. BANK OF ATLANTA, THE FINANCIAL

SYSTEM AFTER THE CRISIS: STRUCTURED FINANCE AND CREDIT RATING

AGENCIES (2010), available at frb.atlanta.org. 177

Many mortgage-backed securities were broken into tranches. Payments on

the mortgages underlying the securities went to the holders of the most senior

tranches first. Only once those investors were paid in full would the holders of

the next-most-senior tranch receive any money, and so on and so forth. Id. 178

See Piskorski et al., supra note 159, at 370-73. 179

For example, approximately 37 million Americans currently have

outstanding student loan debt, and over 50 million U.S. households have

outstanding credit card debt. See AM. STUDENT ASSISTANCE, STUDENT LOAN

DEBT STATISTICS, available at asa.org/policy/resources/stats/, last visited Feb.

24, 2014; Tim Chen, American Household Credit Card Debt Statistics: 2013,

NERDWALLET.COM, last visited Feb. 24, 2014. 180

See In re Gen. Motors Corp., 407 B.R, 463, 493 (Bankr. S.D.N.Y. 2009)

(“This is hardly the first time that this Court has seen creditors risk doomsday

consequences to increase their incremental recoveries . . . .”). 181

See Donald C. Hambrick & Richard A. D’Aveni, Top Team Deterioration As

Part of the Downward Spiral of Large Corporate Bankruptcies, 38 MGT. SCI.

1445 (1992). 182

Jacoby & Janger, supra note 3, at 894. 183

Id. 184

Hambrick & D’Aveni, supra note 181. 185

See, e.g., Gross, supra note 159. 186

See, e.g., id.; Marinucci, supra note 159, at 1301-02. 187

See Neil King Jr. & Jeffrey McCracken, Chrysler Chapter 11 Is Imminent,

WALL ST. J., Apr. 30, 2009, online.wasj.com/article/

SB124102375931669205.html.

42

Motors,188

Six Flags,189

and others190

—the distribution of the

economic interest in a sizable bloc of outstanding debt

significantly complicated and lengthened the negotiating process

and cast the outcome of that process into doubt.191

Similarly, renegotiating mortgages in the wake of an

unexpected economic downturn can create significant value for

both borrowers and lenders.192

Foreclosures can also harm other

homeowners in the same neighborhood by lowering housing

values.193

Moreover, declining housing values can further fuel the

economic downturn.194

Studies have found that securitized loans

are significantly more likely to be foreclosed upon than similar

loans held by a single lender,195

and some have argued that the

188

Einhorn, supra note 159, at 19. 189

See Credit Default Swaps and Bankruptcy: No Empty Threat, PAYMENT-

TIMES BLOG, payment-times.com/wordpress/2009/06/credit-default-swaps-and-

bankruptcy-no-empty-threat/ (last visited Aug. 18, 2013); Gross, supra note 159;

Michael S. Rosenwald, Plagued by Death, Six Flags Faces Its Own Wild Ride,

WASH. POST, Apr. 13, 2009, washingtonpost.com/wp-

dyn/content/article/2009/04/12/AR2009041202152.html; Steffy, supra note 166. 190

See, e.g., Einhorn, supra note 159 (discussing YRC Worldwide and Gannett);

Henny Sender, Hedge-Fund Lending to Distressed Firms Makes for Gray Rules

and Rough Play, WALL ST. J., Jul. 18, 2005,

online.wsj.com/article/1,,SB112164567837987920,00.html (discussing the case

of Tower Automotive); Danas, supra note 159 (“Anecdotal evidence suggests

that corporations such as AbitibiBotwater, General Motors, Harrah's

Entertainment, McClatchy, and Unisys had difficulties in reducing their debt

because of CDS [credit default swap] holders.”). 191

See Danas, supra note 159 (finding that the creditors of companies with

credit default swaps on their debt are more than 50% less likely to participate in

voluntary restructurings). But see Mascia Bedendo et al., In- and Out-of-Court

Debt Restructuring in the Presence of Credit Default Swaps,

www2.warwick.ac.uk/fac/soc/wbs/subjects/finance/fof2012/programme/empty_

cds.pdf (not finding any effect of credit default swaps on voluntary

restructurings). 192

See Patrick Bolton & Howard Rosenthal, Political Intervention in Debt

Contracts, 110 J. POL. ECON. 1103 (2002); Randall S. Kroszner, Is It Better to

Forgive Than to Receive? An Empirical Analysis of the Impact of Debt

Repudiation (2003); Tomasz Piskorski & Alexei Tchistyi, Stochastic House

Appreciation and Optimal Mortgage Lending (2008); see also Piskorski et al.,

supra note 159 (describing the evidence from these studies as “compelling”). 193

Danas, supra note 159; Posner & Zingales, supra note 159. 194

See Danas, supra note 159. 195

See AGARWAL ET AL., supra note 159 (finding that bank-held loans are 26-

36% more likely to be renegotiated than comparable securitized mortgages);

Piskorski et al., supra note 159, at 374 (finding that seriously delinquent

securitized loans are between 13% and 32% more likely to be foreclosed upon

than seriously delinquent loans held by banks); Kruger, supra note 159, at 1

(finding that securitization increases the probability of foreclosure by 35% and

decreases the probability of loan modification by 69%); see also Posner &

43

difficulties of renegotiating securitized loans significantly

exacerbated the 2007-2008 financial crisis and the great

recession.196

Thus voluntary transaction costs, and the efficiency

problems that they can create, are of great real-world importance.

We now turn to some of the implications that voluntary transaction

costs have for the selection and design of legal rules.

IV. IMPLICATIONS FOR CHOOSING LEGAL RULES

As Part III demonstrated, when parties have the ability to

create transaction costs, the Coase Theorem generally will not

apply.197

Thus, we cannot necessarily expect that parties will reach

an efficient result on their own.198

Accordingly, different legal

rules can produce very different outcomes. Having established the

importance of legal rules when voluntary transaction costs are

possible, we now explore the effects of different legal rules on the

parties’ negotiations in greater detail. We then consider the effects

of the remedies that the law provides when those rules are

violated.199

Zingales, supra note 159 (arguing that unnecessary foreclosures in the wake of

the financial crisis could destroy hundreds of billions of dollars of value);

Mayer, supra note 159. But see MANUEL ADELINO ET AL., WHY DON’T

LENDERS RENEGOTIATE MORE HOME MORTGAGES? REDEFAULTS, SELF-CURES,

AND SECURITIZATION, FED. RES. BANK OF BOSTON PUBLIC POLICY DISCUSSION

PAPER NO. 09-4 (arguing that securitization does not reduce renegotiations);

MANUEL ADELINO ET AL., RENEGOTIATING HOME MORTGAGES: EVIDENCE FROM

THE SUBPRIME CRISIS, FED. RES. BANK OF BOSTON PUBLIC POLICY DISCUSSION

PAPER NO. 09-4 (similar); FOOTE ET AL., REDUCING FORECLOSURES: NO EASY

ANSWERS, NBER MACROECONOMICS ANNUAL 24, 89 (2009) (similar). 196

See, e.g., Edward L. Glaeser, Debating the Securitization of Mortgages,

ECONOMIX, NYTIMES.COM, July 27, 2010 (providing an overview of the debate

on this issue); Kruger, supra note 159, at 1-2 (finding that securitization led to

500,000 additional foreclosures during the financial crisis). 197

See Part III.C, supra. 198

See Coase, supra note 2. 199

We explore these issues through examples like that in Part III.B, supra, in

which actors have incentives to keep themselves away from the table. Similar

examples can be constructed for instances in which parties want to keep other

individuals away from the table.

44

A. Structuring Legal Rights

We begin by considering who legal rules should protect,

and to what degree.200

The answers to both questions can

significantly affect whether the parties achieve an efficient result.

1. Legal Rules That Always Produce Efficiency

As a preliminary matter, when policymakers know that a

particular course of action for each party will produce an efficient

result, they can easily guarantee an efficient outcome: They can

enact a legal rule that requires each party to take that efficiency-

creating course of action. We term such a rule a “fully specified

efficient rule.”201

A fully specified efficient rule always guarantees

that the parties will achieve an efficient outcome.202

To understand the logic behind this result, suppose that a

party—let’s call her Alice—is considering deviating from her

legally mandated action. Suppose that the new action Alice is

contemplating produces an inefficient outcome.203

Because the

new outcome is inefficient, Alice’s action must make someone

worse off.204

Each of the parties made worse off by Alice’s new

behavior—the “damaged parties”—has the legal right to insist that

Alice fulfill her legal obligations. To keep each of the damaged

parties from standing on his rights and blocking her new behavior,

Alice must pay each damaged party enough to fully compensate

him for the losses that her new behavior inflicts upon him.

However, because Alice’s legally mandated action produces an

efficient outcome, moving to an inefficient outcome shrinks the

economic pie. Thus, the aggregate gains to Alice and any parties

who benefit from her new action will be smaller than the damaged

parties’ aggregate losses. Accordingly, the beneficiaries of Alice’s

new action will not be willing to pay the damaged parties enough

200

In doing so, we supplement extensive literature on this topic. See, e.g., Krier

& Schwab, supra note 18, at 447-49 (discussing the literature as of 1997). 201

Cf. A. MITCHELL POLINSKY, AN INTRODUCTION TO LAW AND ECONOMICS 31-

33 (4th ed. 2011) (discussing fully specified contracts). 202

A fully specified efficient rule also has other benefits, such as avoiding any

transaction costs that would otherwise be incurred in bringing about an efficient

result. See Coase, supra note 2, at 19. 203

If the new action does not produce an inefficient result, then the parties still

achieve an efficient outcome and there is no issue. 204

If no one is worse off, then the combined utility of the parties must have

grown or stayed the same, in which case the new outcome is not inefficient.

45

to fully compensate them, and at least one damaged party will

always choose to stop Alice from changing her behavior.

Note also that, when there is a fully specified efficient rule,

it is not worthwhile to keep the “opposition”205

away from the

table. If actor Alice wishes to change her own behavior, she must

secure the consent of the opposition in order to do so, and this can

only be done through a negotiated agreement. Conversely, if the

opposition is considering a change in its behavior, it must secure

Alice’s consent. Alice will only give her consent if the opposition

fully compensates her for any losses she would suffer. Thus, she

has no interest in keeping the opposition away from the negotiating

table.

While the fully specified efficient rule is a useful

theoretical construct, it is unlikely that policymakers could enact

many such rules in practice. To implement a fully specified

efficient rule, policymakers must be able to determine the efficient

outcome in advance, as well as a behavior by each party that brings

about that outcome.206

Acquiring and processing the necessary

information to make these determinations will often prove

prohibitively difficult.

In certain circumstances, there are more practicable legal

rules that also promise efficiency. One subset in particular is

worth highlighting. Sometimes, an activity benefits only one

individual but harms many other parties.207

We term this a “one-

against-many” scenario. The classic one-against-many scenario

involves a factory that produces pollution that harms many

homeowners.208

Both of our recurring examples are one-against-

many scenarios: In the farmer/conservationist example, not

205

See footnote 60, supra, and accompanying text. 206

Moreover, the underlying economic facts can change over time, making this

task even more difficult. 207

Equivalently, an activity can harm only one individual but benefit many

others. For example, consider a factory that produces pollution that harms many

surrounding homeowners. If the factory operates, that harms many shareholders

but benefits only the factory (ignoring the issue of public shareholders,

employees, and so forth). If the behavior is framed as the right to cease the

factory’s production, that harms only the factory and benefits many

homeowners. But both scenarios are exactly identical. See FRANK, supra note

26, at 90-95. 208

For a modern spin, see Beggs, supra note 49 (discussing a wind farm whose

turbines produce noise that bothers nearby households).

46

running the train benefited only the farmer, and hurt both the

railroad and the conservationist.209

Similarly, in the two-farmer

example, running the train benefitted only the railroad, and hurt

both farmers.210

When there is a one-against-many scenario, a legal rule that

enables each member of the many to stop the one from engaging in

activity (a “many-privileging rule”) ensures that none of the parties

wishes to create transaction costs. By discouraging voluntary

transaction costs, many-privileging rules can encourage efficiency.

To appreciate why this is so, it is helpful to examine this dynamic

through the lens of our recurring two-farmer example.

Assume that the law imposes a many-privileging rule—that

is, it gives farmers the right to keep sparks off of their lands. First,

consider the railroad’s incentives. It wishes to run trains on the

railroad track. Every individual farmer has the right to stop the

railroad from doing so. The railroad must therefore reach an

agreement with every farmer if it wishes to run trains. That means

the railroad will not want to keep any farmers away from the table.

Nor does the railroad wish to keep itself away from the table. It is

the only party who is willing to pay the farmers to allow trains to

run; if it does not arrange a deal with the farmers, there will be no

deal.211

Therefore, the railroad does not wish to create transaction

costs.

Next, consider the farmers’ incentives. Each farmer has the

power to prevent the trains from running if she so chooses. Each

farmer can refuse any deal that is not in her interest; accordingly, if

the trains run, each farmer must have struck a deal that made her

better off than she would have been if no trains ran. That means

that each farmer has no reason to keep herself away from the

table.212

Moreover, each farmer can only strike a deal with the

railroad if the railroad and all the other farmers come to the table

as well.213

Consequently, neither farmer wishes to create

209

See notes 70-72, supra, and accompanying text. 210

See Table 1, supra. 211

In other words, there is no one that the railroad can hope to free-ride off of. 212

But see notes 215216, infra, and accompanying text. 213

It is clear why the railroad must come to the table for the farmer to strike a

deal with it. Moreover, the railroad only wants to strike a deal if doing so allows

the railroad to run the train. This can only happen if the railroad can strike a

deal with every farmer, which is only possible if all farmers come to the table.

47

transaction costs that keep the other farmer away from the table,

either. This analysis applies with the same force if there are two

farmers, three farmers, or a hundred farmers.214

In a one-against-many scenario, imposing a many-

privileging legal rule guarantees that no party will want to create

transaction costs. It is worth noting that we established this result

without making any assumptions about which outcome was

efficient; a many-privileging legal rule encourages the parties to

reach an efficient result regardless of which outcome is efficient.

That said, we must note that many-privileging legal rules

also have a serious drawback. A many-privileging legal rule can

create the perfect conditions for a hold-out problem, in which each

member of the many attempts to hold out on giving his consent in

order to extract as much of the gains from the efficient bargain as

possible.215

This sort of strategic behavior—often considered a

transaction cost216

—can prevent the parties from reaching an

efficient Coasean bargain. This suggests a trade-off between

voluntary and structural transaction costs in one-against-many

scenarios.

2. The Value of a More Efficient Starting Point

The Coase Theorem recognizes that legal entitlements are

not final judgments. They are merely default rules that the parties

can alter through private agreement if they so choose. Legal

entitlements are not the last word, but instead the beginning of the

conversation.217

When voluntary transaction costs are possible, the

starting point for negotiations can be extremely important. The

smaller the gap between the parties’ starting point and the efficient

outcome, the better the parties’ prospects are of traversing that gap.

214

Cf. William Yardley, Turbines Too Loud? Here, Take $5,000, N.Y. TIMES,

July 31, 2010 (discussing how a wind farm is paying local residents $5,000 to

waive their right to complain about noise produced by the wind turbines). 215

We note that this is not a problem if protected parties are only entitled to a

liability remedy instead of an injunctive remedy. See Part IV.B.2, infra. 216

See, e.g., Fennell, supra note 4, at 1486-87 (discussing the classification

issue). 217

See, e.g., Jerry Kang, Information Privacy in Cyberspace Transactions, 50

STAN. L. REV. 1193, 1250-51 (1998) (“[E]ven if transaction costs are not large

enough to transform default rules into immutable ones, the default rule still

matters because ‘it determines who will bargain and at what cost.’”); Parts IV.A-

B, infra.

48

To see the intuition behind this result, recall our prior

discussion of when parties chose to create transaction costs, even

though doing so produced inefficient outcomes.218

In the examples

we examined, the first steps toward the efficient result produced

the largest net benefits. This is likely to be a common scenario; the

worse one’s starting point, the easier it is to make large

improvements.219

At the same time, larger bargains are likely to

entail larger transfer payments, which increases the incentives for a

potential payer to create transaction costs to keep herself away

from the table. Even if those transaction costs prevent an efficient

bargain, the other parties who come to the table are still likely to

strike some deal—and that deal will produce large benefits without

a cash payment from the absent party.

It is helpful to illustrate these points by modifying our

familiar two-farmer example. Once again, assume that there are

two wheat farmers, Alice and Bob, whose farms abut parallel

railroad tracks, and who must leave ground fallow next to the

tracks to prevent sparks from passing trains from lighting their

fields on fire. In this example, however, we assume that there are

four railroad tracks, which we will number 1 to 4, with track 4

being the closest to the farmers’ fields and track 1 being the

farthest. There are two railroads—the Reading Railroad and the

Short Line Railroad220

—that send trains down these tracks.221

Like

Bob, the Short Line Railroad has the option to create transaction

costs that will prevent it from being party to any transaction

between the railroads and the farmers.

Both railroads have the same access to all four tracks.222

Each can run trains on all four tracks, the furthest three tracks, the

furthest two tracks, the furthest track, or run no trains at all.223

Running trains on more tracks increases the benefits to the

railroads, but requires the farmers to forgo planting more wheat.

218

See Part III.C, supra. 219

This is an application of the low-hanging-fruit principle. See FRANK &

BERNANKE, supra note 157, at 46-47. 220

We do not consider the incentives of the B&O and Pennsylvania Railroads. 221

Presumably, they are not sending trains down the tracks at the same time. 222

For example, this scenario could arise if the government owned the tracks

and made them available to all railroads, or if a private third party owned the

tracks and leased them out for use by others. 223

Again, we assume that the railroads are good neighbors. See note 124, supra,

and sources cited therein.

49

For simplicity, we number these various options based on the

closest track to the farmers’ fields on which trains run—which also

corresponds to the number of tracks on which trains run.224

Table 3, below, shows the benefits that running trains on

various tracks accords to the farmers and the railroads, and the net

surplus that each scenario creates.

TABLE 3225

Closest Track

on Which

Trains Run

Value to

Farmers

Value to

Railroads

Total

Value

4 $0 $3800 $3800

3 $1800 $3200 $5000

2 $2700 $2700 $5400

1 $3200 $1800 $5000

No Trains Run $3800 $0 $3800

This table groups the consequences of running trains on

varied numbers of tracks for both farmers as a group and for both

railroads as a group. This approach makes sense for two reasons:

First, note that because the same railroad tracks abut both farms,

any locomotive going by one farm at a particular distance from the

field will go by the other farm at the same distance. Thus, each

farmer will have the same amount of sparks thrown onto his or her

land. The railroads’ situation is equivalent; if Alice and Bob plant

far enough back from the train tracks that the Reading Railroad can

safely run trains on a particular track, the Short Line Railroad can

also safely run trains on that same track.

224

For example, recall that track 4 is the closest to the farmers’ fields. If trains

run on track 4, then they are also running on tracks 1, 2, and 3. Thus, there are

also trains running on 4 tracks. 225

Note that the symmetry inherent in Table 3 is not necessary to any of the

results of this Subpart. Structuring the table this way merely simplifies the

exposition.

50

Second, we assume that Alice and Bob have similar fields,

so that they receive the same benefit from planting wheat closer to

the track, and that the two railroads have similar cost structures and

opportunities, so that they receive the same benefits from running

trains on particular tracks. We therefore assume that the value to

each individual farmer in each scenario in Table 3 is one half of

the total shown for both farmers, and the value that each railroad

receives from running a given number of trains is one half of the

total shown for both railroads.

Examining the rightmost column of Table 3 makes clear

that the efficient outcome is to run trains on tracks 1 and 2 only;

doing so creates more value than any other option. Running trains

on one additional or one fewer track are the next most efficient

options. The least efficient option is running trains on all four

tracks or not running any trains at all. Note also that as the

outcome becomes farther from the efficient outcome, the loss of

value relative to the efficient outcome becomes much larger.

We now demonstrate that the parties will not reach the

efficient outcome if the legal default rule enables railroads to run

trains on all four tracks, or forbids them from running any trains at

all.

We first consider what happens if the law accords the

railroads the right to run trains on all four tracks.226

The question

then becomes whether the farmers will strike a bargain with the

railroads in which the farmers pay the railroads to run trains on

fewer tracks and, if so, how many fewer tracks.

There are two cases to consider. In the first scenario, Bob

chooses not to create transaction costs that keep him out of the

negotiations. Combined, Alice and Bob should strike a deal with

the railroads to run trains on tracks 1 and 2 only;227

this maximizes

the joint value that all the parties receive.228

The railroads would

be willing do so in exchange for any amount that exceeds $1100,

and Alice and Bob stand to gain $2700 combined.

226

This is equivalent to a legal rule that grants railroads an absolute right to emit

sparks from their locomotives. 227

This gives Alice and Bob combined benefits of $2700, but only costs the

railroads $1100. 228

See Table 3, supra.

51

Assuming, as previously, that the parties split the gains

created evenly among themselves,229

each farmer should contribute

$950 to defray the railroads’ costs of installation. This would

leave each railroad $400 better off than it was when it ran trains on

all four tracks.230

Meanwhile, each farmer would earn an

additional $1350 from growing additional wheat. After paying

$950 to the railroads, each farmer would be $400 better off as well.

In the second scenario, Bob chooses to create transaction

costs that prevent him from negotiating with the railroads. This

means that Alice is the only one negotiating with the railroads.

Alice gets $900 of value from having no trains run on track 4, and

running trains on track 4 is only worth $600 to the railroads. Thus,

Alice and the railroads will reach a contract under which the

railroads do not run trains on track 4. If trains stop running on

track 3, Alice benefits by $450. However, running trains on track

3 is worth $500 to the railroads. Alice therefore will not be willing

to pay the railroads enough to induce them to stop running trains

on track 3. Accordingly, if Bob stays away from the negotiating

table, Alice will pay the railroads not to run trains on track 4.

This result is less efficient than the first scenario. Running

trains on tracks 1, 2, and 3 creates $5000 of value, while only

running trains on tracks 1 and 2 creates $5400 of value.231

However, the value is divided very differently in the two scenarios.

In the first scenario, Alice and the two railroads have a $300

increase in value to divvy up between themselves. Bob, on the

other hand, captures the remaining $900 of value himself: The

railroads not running trains on track 4 allows Bob to grow $900

more wheat, and he does not need to pay the railroads anything.

This means that Bob does much better under this scenario than

under the previous one.

Because Bob makes much more profit in scenario two than

scenario one, he will choose to create transaction costs in order to

bring that scenario into effect. Accordingly, a legal rule that gives

railroads the legal right to run trains on all four tracks will produce

229

See text accompanying notes 29 and 30, supra. 230

Each railroad gets $950 cash; simultaneously, running trains on 2 tracks

instead of all 4 costs each railroad $550 of value. Thus, the agreement gives

each railroad $400 in net benefits. 231

See Table 3, supra.

52

scenario two above and result in trains running on tracks 1, 2, and

3 instead of only on tracks 1 and 2—an inefficient result.

We now turn to the opposite extreme—a legal rule that

prevents trains from running on any tracks.232

This corresponds to

the bottom row of Table 3, in which no trains run. This produces

$3800 of value for the farmers, but none for the railroads.

Similarly to the previous example, the railroads may be

able to pay the farmers in exchange for the farmers allowing trains

to run on certain tracks. The Short Line Railroad, like Bob, has the

ability to create transaction costs that prevent it from being party to

any agreement. Thus, as before, there are two cases to consider.

In the first case, the Short Line Railroad does not create

transaction costs and both railroads negotiate with both farmers.

With all parties at the table, the parties should be expected to reach

an efficient result. As noted previously, that corresponds to trains

running on tracks 1 and 2 only.

Compared to the situation in which no trains run, running

trains on tracks 1 and 2 creates an additional $1600 of value.

Assuming that the parties again divide that surplus among

themselves evenly,233

this corresponds to the railroads paying each

farmer $950 to allow trains to run on tracks 1 and 2 instead of

insisting that no trains run. This will require the farmers to plant

farther back from the train track, which will cost each farmer $550

in forgone wheat. However, after the payment from the railroads

is accounted for, each farmer is $400 better off. Similarly, each

railroad will earn $1350 from running trains on tracks 1 and 2.

After subtracting out the $950 each railroad must pay the farmers,

each railroad is $400 richer.

Alternatively, the Short Line Railroad could instead choose

to create transaction costs that prevent it from being party to any

negotiations with Alice and Bob. If that happens, the Reading

Railroad will still be negotiating with the farmers. Reading

Railroad will be willing to pay the farmers enough to allow it to

run trains on track 1. Reading would earn $900 from running

232

This is equivalent to a legal rule that grants the farmers an absolute right to

not have sparks cast onto their land. 233

See text accompanying notes 29 and 30, supra.

53

trains on that track, and the farmers would only lose $600 worth of

wheat production. This shift creates $300 of surplus for the two

farmers and Reading to allocate among themselves.

Allowing trains to run on track 2 as well would cost the

farmers an additional $500 in lost wheat production, but would

only benefit Reading Railroad by $450. Accordingly, if the Short

Line Railroad does not come to the negotiating table, the Reading

Railroad will not be willing to pay the farmers enough to allow it

to run trains on track 2.

Overall, this scenario produces a less efficient result than

when Short Line participates in the negotiations. By not striking

an agreement that would let the railroads run trains on track 2, the

parties are leaving $400 of potential gains from trade on the table.

Nonetheless, Short Line Railroad prefers this second

scenario. Compared to when no trains run, the first scenario gives

Short Line $400 in additional value. The second scenario, in

contrast, makes Short Line $900 better off, because it does not

need to make any payments to the farmers. Thus, Short Line

prefers the second scenario. Accordingly, a legal rule that forbids

railroads from running trains on any of the tracks will lead to trains

running on track 1 only. This is an inefficient outcome.

In this example, initial legal default rules that are too far

from the efficient result in either direction produce inefficient

outcomes. However, as long as the legal default rule is at least an

intermediate outcome—that is, the legal default rule is close

enough to the efficient result—the parties reach an efficient

outcome. The logic underlying this effect is the same as in Table

2234

: The parties that can create transaction costs must participate

in the agreement to produce an efficient outcome. Alice alone will

never be willing to pay the railroads enough to stop running trains

on track 3.235

Thus, if the law allows the railroads to run trains on

tracks 1, 2, and 3, Bob can only improve on that outcome by

teaming up with Alice to buy off the railroads and increase the size

of the pie. The same logic applies to the Short Line Railroad if the

law only permits the railroads to run trains on track 4. Table 4,

below, summarizes these results.

234

See Table 2, supra. 235

See note 130, supra, and accompanying text.

54

TABLE 4

Closest Track

on Which

Law Allows

Trains to Run

Parties

Receiving

Payments

Voluntary

Transaction

Costs?

Closest

Track on

Which

Trains Run

Efficient

Result?

4 Railroads

Bob Will

Pay to

Create

3 No

3 Railroads

Bob Will

Pay to

Remove

2 Yes

2

Neither

Indifferent 2 Yes

1 Farmers

Short Line

Will Pay to

Remove

2 Yes

No

Trains

Run

Farmers

Short Line

Will Pay to

Create

1 No

The analysis above naturally raises the question of when

and how the legal default is likely to approximate the efficient

outcome. One such way is to define legal rights by implicitly or

explicitly weighing costs and benefits. For example, there are a

number of instances in which the common law gives parties the

right to engage in a particular activity so long as their behavior is

reasonable.236

These “reasonable use” rules roughly correspond to

236

Ideally, such rules should consider all costs and benefits, including those that

accrue to parties outside of the litigation. It is unclear to what extent courts

incorporate such factors.

55

courts weighing the costs and benefits of the proposed activity and

ruling accordingly.237

Many of the areas governed by reasonable use rules are

areas for which voluntary transaction costs are relevant.238

Nuisance law, for example, protects landowners against substantial

and unreasonable interference with their use and enjoyment of

their land.239

Landowners have typically brought nuisance cases

against neighbors engaging in activities that produce significant

amounts of noise, dust, smoke, odors, or vibrations.240

These types

of behaviors are likely to affect multiple neighbors of the offending

party. However, in many cases they will not affect so many other

landowners as to render a negotiated transaction prohibitively

difficult.241

Indeed, nuisance cases provide the fact patterns for

some of the most famous examples illustrating the Coase

Theorem.242

To take another example from property law, landowners in

most states have the right to modify their land to reasonably alter

or divert the natural flow of water across their properties.243

Such

237

This is, of course, an oversimplification, but it is a useful high-level view.

See, e.g., JOHN W. JOHNSON, UNITED STATES WATER LAW: AN INTRODUCTION

90 (2008) (describing how courts decide whether an action is reasonable by

weighing the value of the action against the damages caused to others’ property

from the action in question, as compared to the damages that would result from

alternative actions). 238

To be clear, we do not argue that state legislatures or common law courts

imposed these rules based on some intuitive understanding of voluntary

transaction costs. These rules can be derived based on other principles, such as

conceptions of justice or natural law. See, e.g., Swett v. Cutts, 50 N.H. 439, 444

(1870) (stating that the right of a riparian owner is “a natural right . . . to partake

in the enjoyment of the common bounty of Providence, as in the cases of light

and air”). They can also be derived based on other efficiency arguments; since

all real-world transactions involve transaction costs, an efficient legal rule that

obviates the need for further negotiations among the parties will enhance

efficiency. See Coase, supra note 2, at 19. 239

See, e.g., San Diego Gas & Electric Co. v. Superior Court, 920 P.2d 669, 696

(Cal. 1996); JOSEPH SINGER, PROPERTY LAW: RULES, POLICIES, AND PRACTICES

307 (3d ed. 2002). 240

In re Chicago Flood Litigation, 680 N.E.2d 265, 278 (Ill. 1997); SINGER,

supra note 239, at 306 (also listing attracting insects among the actions giving

rise to causes of action for nuisance). 241

Such scenarios often constitute public nuisances instead of private ones. See

RESTATEMENT (SECOND) OF TORTS § 821B(1). 242

See sources cited in notes 50-53, supra. 243

See JOHNSON, supra note 237, at 90-91 (describing reasonable use rules and

their prevalence, and noting that states that purport to follow other rules

effectively follow reasonable use rules in practice).

56

diversions will often affect multiple identifiable neighbors, who

could plausibly negotiate an agreement. Similarly, in states with

riparian water law systems, landowners whose properties adjoin

waterways may take water for all reasonable uses, so long as they

do not unreasonably interfere with others’ uses of water from the

waterway.244

The possibility of voluntary transaction costs

provides additional support for these reasonable use rules and

suggests that such rules could prove beneficial in additional

circumstances.245

A drawback of reasonable use rules is that they require

courts and parties to have more information than more bright-line

rules do. This can make bright-line rules more attractive in certain

instances.

For example, if a railroad has an absolute right to emit

sparks, the railroad knows what its legal rights are and can act

accordingly. On the other hand, if the railroad has the right to emit

sparks only if it does not unreasonably interfere with the farmer’s

right to use its property, it may not be clear to the railroad what its

legal rights are. At the very least, the railroad will have to estimate

the likely effects of its spark emission activity on the farmer.246

Similarly, courts will have to weigh the costs and benefits to the

railroads and farmers against each other. This may prove

challenging, and the court may err.

However, we note that a legal default rule that does not

exactly match the efficient outcome may still provide significant

benefits.247

Returning to our two-farmer, two-railroad example

above, a perfectly conceived and implemented reasonable use rule

244

Id. at 36-37. 245

To be clear, we do not argue that state legislatures or common law courts

imposed these rules based on some intuitive understanding of voluntary

transaction costs. These rules can be derived based on other principles, such as

conceptions of justice or natural law. See, e.g., Swett v. Cutts, 50 N.H. 439, 444

(1870) (stating that the right of a riparian owner is “a natural right . . . to partake

in the enjoyment of the common bounty of Providence, as in the cases of light

and air”). They can also be derived based on other efficiency arguments; since

all real-world transactions involve transaction costs, an efficient legal rule that

obviates the need for further negotiations among the parties will enhance

efficiency. See Coase, supra note 2, at 19. 246

Unclear rights may also increase the frequency of litigation, which is costly.

See POSNER, supra note 20, at 791. 247

This point also helps ameliorate the concern raised in note 236, supra.

57

would result in trains running on tracks 1 and 2 only.248

But if

courts overweigh the interests of the farmers or the railroads, this

might not happen, and the actual legal rule might permit trains to

run on tracks 1, 2, and 3, or only on track 1. In either instance, the

legal rule will be close to efficient, and the parties will be able to

close the remaining gap.249

On the other hand, assigning an

absolute right to either the farmers or the railroads does not

produce an efficient result.250

This same logic applies to statutes that create bright-line

rules. Legislatures are often better equipped than courts to make

large-scale societal judgments regarding the costs and benefits of

particular activities.251

A legal rule that draws a bright line—even

an arbitrary one—will have the same benefits as a reasonable use

rule, so long as that bright line is close to the efficient outcome.252

B. The Importance of Legal Remedies

In all of the examples we have analyzed so far, we have

assumed that legally protected parties can prevent any behavior

that violates the law if they so choose. However, the remedies that

the law provides to protected parties have strong effects on both

whether the parties will strike a deal and the type of deal that the

parties will strike.253

We first discuss the differing ways in which

remedies affect the parties’ decisions when transaction costs are

low and when they are high. We then consider the relative merits

of injunctive remedies and liability remedies, the two most

common types of remedies that U.S. laws provide.

248

See Table 3, supra. 249

See Table 4, supra. 250

See Table 4, supra. 251

POSNER, supra note 20, at 715-16. 252

A more efficient legal default rule is also preferable if no bargaining takes

place. This is particularly important if parties are able to create transaction costs

that prevent all bargaining. See Part III.A, supra. 253

In doing so, we supplement extensive literature on this topic. See, e.g.,

Brooks, supra note 6; Louis Kaplow & Steven Shavell, Property Rules Versus

Liability Rules: An Economic Analysis, 109 HARV. L. REV. 713 (1996); A.

Mitchell Polinsky, Resolving Nuisance Disputes: The Simple Economics of

Injunctive and Damage Remedies, 32 STAN. L. REV. 1075, 1088-92 (1980);

Ayres & Talley, supra note 17; Louis Kaplow & Steven Shavell, Do Liability

Rules Facilitate Bargaining? A Reply to Ayres and Talley, 105 YALE L.J. 221

(1995); Ian Ayres & Eric Talley, Distinguishing Between Consensual and

Nonconsensual Advantages of Liability Rules, 105 YALE L.J. 235 (1995).

58

1. Remedies in Low- and High- Transaction Cost

Environments

Remedies are important in both low- and high-transaction

cost environments, but they have different effects in each

circumstance.254

When there are large transaction costs, so that

Coasean bargaining is impossible, legal remedies determine what

consequences the parties will reap from various competing courses

of action. This affects what decisions the parties will make, and

can either prevent or facilitate the achievement of an efficient

result. In contrast, when there are no transaction costs, the parties

can always strike a Coasean bargain that produces efficiency,

regardless of what remedies the law provides. However, the legal

remedies available still shape the agreements that the parties will

make.255

These points are best illustrated through example.

Consider another farmer and railroad scenario. Assume that

running the train is worth $1000 to the railroad, and that the farmer

will lose $500 if he plants further back from the track. Since the

farmer’s loss from planting back from the track is smaller than the

$1000 gain the railroad gets from running the train, it is efficient

for the train to run. Assume that farmers have the legal right to not

have any sparks cast onto their fields.

First, suppose that transaction costs are high, so that the

parties cannot negotiate. Even though farmers have the legal right

to not have any sparks cast onto their fields, that does not

necessarily mean that the railroad will not run the train; the answer

to that question depends on the consequences that the railroad will

suffer if it violates the law.256

If running the train will incur a

penalty that exceeds the $1000 benefit to the railroad of running

the train,257

a rational railroad will not run the train.258

Conversely,

254

See also Giuseppe Dari-Mattiaci, Endogenous Transaction Costs (exploring

the extent to which different legal remedies create transaction costs). 255

This dynamic is often referred to as bargaining in the shadow of the law.

See, e.g., Robert H. Mnookin & Lewis Kornhauser, Bargaining in the Shadow of

the Law: The Case of Divorce, 88 YALE L.J. 950, 968 (1979). 256

The cost of violating the law may extend beyond the legally mandated

punishment. There may be bad publicity, or political costs, associated with such

violations as well, and these costs should be included in the railroad’s calculus

as well. For simplicity, we assume throughout this paper that the only relevant

consequences are the legally mandated punishments. 257

Or, equivalently, the $1000 opportunity cost of not running the train.

59

if the punishment for running the train is a fine of $500, a rational

railroad will run its train and pay the fine; from the railroad’s

perspective, it would not make sense to forgo $1000 from running

its train solely to avoid paying a $500 fine. Thus, when transaction

costs are high, the legal remedy can determine the actions the

parties will take, which can prevent or enable an efficient result.

On the other hand, if there are no transaction costs, then

regardless of what remedy the law provides, the railroad and

farmer can strike a deal in which the railroad pays the farmer to

plant further back from the track. The size of the payment to the

farmer could be anywhere between $500 and $1000. In general, it

is difficult to predict precisely where in this range the parties will

strike their agreement. However, legal rules can channel the

parties towards particular outcomes.

For example, many statutes entitle parties to fixed damage

awards for violations of particular rights.259

Suppose that the

farmer’s jurisdiction has a statute that entitles the farmer to an

$800 payment from any railroad that throws sparks onto her

property, and that this is the farmer’s only remedy. In such a

situation, the railroad will be unwilling to pay the farmer more than

$800.260

Similarly, the farmer should not accept a payment of less

than $800.261

In such circumstances, the parties seem likely to

transact at a price of approximately $800.262

Thus, regardless of

258

We assume there are no intermediate options. 259

See, e.g., 17 U.S.C. § 504(c) (2012) (setting statutory minimum damages of

$750, and maximum damages of $30,000, for copyright infringement); 15

U.S.C. § 1117(c) (2012) (setting statutory minimum damages of $1000, and

maximum damages of $200,000, for using counterfeit trademarks); 18 U.S.C. §

2520(c)(2)(B) (setting statutory damages for intercepting electronic

communications of $100 per day, up to $10,000 total). 260

Suppose the railroad agreed to pay the farmer $900 to allow it to run its train.

If the railroad did not pay the farmer and simply ran the train, it would only owe

$800 in damages. This would leave the railroad better off than under its deal

with the farmer. Thus, the railroad should never agree to such a deal. 261

Suppose the farmer and the railroad do not reach an agreement. The railroad

will be better off if it runs its train and pays the $800 penalty than if it does not

run the train and loses $1000 of value. Thus, the railroad is likely to run its train

and pay the farmer the $800 penalty. Knowing this, the farmer will be reluctant

to part with her legal right for less than $800. 262

In reality, there are always costs to enforcing legal rights. Since striking a

deal allows the parties to avoid incurring these costs (in exchange for incurring

the costs of deal-making), the set of possible outcomes would generally extend

to some range around and including an $800 payment. For example, suppose

that enforcing a legal right by lawsuit requires each party to incur $50 of legal

60

the size of transaction costs, legal remedies remain important,

though their effects vary in each instance.

2. Injunctive Remedies vs. Liability Remedies

U.S. laws provide considerable variation in the legal

remedies that they accord to parties who suffer various wrongs, but

injunctive remedies and liability remedies are the most common.263

A party entitled to an injunctive remedy can secure a court

order commanding the other party to cease its unlawful

behavior.264

A party who violates such an order may be held in

contempt of court, which can be punished through heavy fine or

imprisonment.265

In all of the examples we analyzed in previous

subparts, we assumed that legally protected parties could prevent

any behavior that violates the legal rule if they so choose. This is

equivalent to assuming that aggrieved parties are entitled to an

injunctive remedy.

Liability remedies, in contrast, only entitle the damaged

party to recover monetary damages from the party violating the

law.266

In most instances, the wronged party is entitled to recover

the amount of damages caused by the violator’s wrongful

actions—such rules are termed compensatory liability rules, as

they exactly compensate the wronged party for the harm they

suffered—but this is not a necessary feature of liability rules and

there are many counterexamples.267

Liability remedies facilitate an efficient result in more

circumstances than injunctive remedies do. Given a legal rule, any

result that can be achieved via injunctive remedies can also be

costs. If the railroad illegally runs its train and the farmer files suit, the total cost

to the railroad will be $850 and the farmer will net $750 cash. Assuming that

negotiating a deal is costless, the parties could plausibly strike a deal at any

price between $750 and $850 in this instance. See POSNER, supra note 20, at

791. 263

See Calabresi & Melamed, supra note 4, at 1092. 264

Id. 265

Id. 266

Id. 267

Perhaps the most well-known is the damages rule for antitrust violations,

which allows wronged parties to recover three times the damages that they

suffer, but there are many examples. See, e.g., 15 U.S.C. § 1117(b) (2012)

(trademark violations involving counterfeit marks); 35 U.S.C. § 284 (2012)

(authorizing courts to award treble damages in patent infringement cases).

61

achieved via liability remedies. The key intuition is that a liability

remedy that provides for a large enough damages payment will

always prevent a party from acting in a way that triggers her

liability. In other words, sufficiently large liability remedies

produce the same effects as injunctive remedies. The reverse is not

true; thus, there are certain instances in which liability remedies

can produce efficient results that injunctive remedies cannot.268

However, neither injunctive nor common liability remedies

guarantee that the parties will reach an efficient result.

To see how liability remedies can promote efficiency when

injunctive remedies do not, we revisit the two-farmer, two-

railroad-track example that we considered in Part III.C. The

railroad can run trains on both tracks, the track farther from the

farmers’ property, or neither track.269

The closer that the railroad

runs trains to the farmers’ property, the farther back the farmers

must plant their wheat from the track.

The payoffs for the parties under different circumstances

are shown in Table 5, below.

TABLE 5

Value

to Alice

Value

to Bob

Value to

Railroad

No Trains Run $1000 $1000 $0

Trains Run on

Far Track Only $650 $650 $400

Trains Run on

Both Tracks $0 $0 $800

Suppose that all three parties have the ability to create

transaction costs that keep themselves away from the negotiating

table. In addition, suppose that Alice has a hill on the edge of her 268

For the remainder of this Subpart, we only consider liability rules that are

compensatory. 269

Again, we assume that the railroad is a good neighbor. See note 124, supra,

and sources cited therein.

62

property that is prone to mudslides. If she chooses, Alice can

redirect these mudslides so that they spill onto the near track,

rendering it impassible. Suppose that the law gives the railroad the

right to run trains on both tracks, and that it is illegal for Alice to

redirect the mudslides to block the near track.

If the railroad’s legal right is backed by an injunctive

remedy, Alice will not be able to block the near track. If she

attempts to do so, she is violating the law, and the railroad can

secure an injunction that forces her to stop. This scenario is

therefore exactly identical to the scenario analyzed in Part III.C: In

both scenarios, the same parties have the same choices and the

same payoffs. There, as here, the efficient result is for no trains to

run.270

In both scenarios, both farmers and the railroad must come

to the negotiating table for the parties to achieve an efficient

result.271

Because this situation is identical to the scenario

analyzed in Part III.C, it produces the same result; there is never an

efficient outcome because it is never in the interests of both

farmers to come to the negotiating table.

Now suppose instead that the law only provides the railroad

with a compensatory liability remedy. In other words, if Alice

blocks the near track, the railroad cannot unblock the track; it can

only recover damages from Alice in an amount equal to the benefit

that the railroad would have received if the near track had not been

blocked. It is now possible for the parties to achieve an efficient

result.272

Consider again a scenario in which all parties come to the

table. Suppose that the farmers pay the railroad a total of $900 not

to run the train, $600 of which comes from Alice and $300 of

which comes from Bob. This produces an efficient result; the

question is whether all parties are acting in their interests by

coming to the table.

270

This produces $2000 of value, which is more than the $1700 produced when

trains run on the far track only and the $800 produced when trains run on both

tracks. See Table 5, supra. 271

In both scenarios, inducing the railroad not to run trains on the far track

requires a payment of $400, but each farmer only benefits by $350 from that

train not running. Thus, an efficient deal with the railroad is only possible if

both farmers come to the table. See Part III.C, supra. 272

We note that it is not certain, however. See Companion Paper, supra note 11,

at 6.

63

The railroad is better off coming to the table. If the railroad

does not come to the table, it will not be party to any agreement.273

Alice will then block the near track.274

The railroad will run trains

on the far track and collect damages from Alice, which will

compensate the railroad for the value it loses from not running

trains on the near track. The end result is that the railroad will only

receive $800 of value, which is $100 less than the $900 it receives

pursuant to the parties’ agreement.275

Similarly, for a farmer to evaluate whether coming to the

table makes her better off, she must know what will happen if she

does not come to the table. Bob currently gets $700 of value.276

If

he leaves the table, the best outcome that he can hope for is that

Alice will stop the railroad from running trains on the near track.277

This will give Bob only $650 of net value.278

Thus, Bob is better

off staying at the table.

But what of Alice? Currently, she receives $400 of value.

One might think that, by leaving the table, she could force Bob to

negotiate with the railroad alone. Bob would then pay the railroad

not to run trains on the near track, giving Alice $650 of value.279

Indeed, that could happen—but it is not the only possibility.

Because of the liability remedy, Alice cannot truly leave

negotiations. Even when Alice leaves the table, she still has the

ability to change the railroad’s behavior: she can block the near

track and pay the railroad for its losses. Bob could plausibly

decide not to strike any deal with the railroad if he thinks that,

when push comes to shove, Alice will block the near track. And,

given that Bob does not negotiate with the railroad, it is in Alice’s

interest to block the near track, as this enables her to plant $650 of

wheat at a cost of only $400.

273

See Companion Paper, supra note 11, at 4 n.5. 274

Blocking the near track enables Alice to plant $650 in additional wheat.

These gains exceed the $400 damages payment she must make to the railroad. 275

See Table 5, supra. 276

He grows $1000 worth of wheat and pays the railroad $300. 277

See note 130, supra, and accompanying text. Alice may accomplish this

either by negotiating a deal with the railroad or by blocking the near track. 278

See Table 5, supra. 279

Bob and Alice have the same payoffs; see note 130, supra, and

accompanying text.

64

That scenario nets Alice only $250, which is less than the

$400 she receives when both Bob and Alice come to the

negotiating table.280

So, if this scenario is likely—and this

scenario is perfectly plausible, as it entails everyone acting in her

best interest—then Alice is better off coming to the negotiating

table. Thus, under a liability rule, an efficient result is possible,

though generally not guaranteed.

A few additional points deserve mention. First, the

assumption that only Alice can block the near track merely

clarifies the analysis; it is not necessary to our result. The

behaviors described above are also equilibrium behaviors when

both Alice and Bob have the ability to block the near track.281

It is

also worth noting that the real world is often asymmetric. Even

when an action affects multiple parties in the same way, some of

those parties may naturally be in a better position than others to

block that action.

For example, consider a scenario in which a beekeeper’s

bees pollinate a local orchard’s apple trees but also sting a local

rancher’s cattle.282

Suppose that the rancher has the right to restrict

the number of bees in the beekeeper’s hives, and that right is

enforced by a liability remedy. In this scenario, the beekeeper, and

not the farmer, is naturally in a position to violate the rancher’s

right and pay him damages, even though both the farmer and the

beekeeper benefit from the beekeeper having more bees.283

280

Under the proposed agreement, Alice pays $600 to the railroad and gets to

grow an additional $1000 worth of wheat. 281

Those behaviors are not the only equilibrium behaviors. For example, Alice

could pay $300 and Bob could pay $600. This would be an equilibrium so long

as Bob thought that, if he refused to come to the table, Alice would not negotiate

with the railroad, leaving him to block the track. 282

This is essentially a combination of two famous Coasean examples. See

Elodie Bertrand, What do Cattle and Bees Tell Us About the Coase Theorem?,

Communication to the 13th Conference of the Charles Gide Association, Paris,

May 27-29, 2010, available at colloquegide2010.univ-paris1.fr/IMG/pdf/

Bertrand.pdf. 283

Similarly, consider the famous Coasean example involving a rancher who

neighbors a farmer, and who wishes to allow his cattle to graze on the farmer’s

lands. See id. The rancher’s cattle may wander across the neighboring farmer’s

property to other farmers’ lands, but it may be much easier for the first farmer to

build a fence that restrains the cattle, particularly if there are only a handful of

bridges or other chokepoints through which the cattle can cross onto the first

farmer’s property.

65

Moreover, liability remedies themselves are fundamentally

asymmetric. An individual who deviates from the behavior

required by the legal rule is required to pay damages to those

parties who are hurt by her actions. However, that same individual

is not entitled to receive a payment from those parties who benefit

from her actions.

Theoretically, liability remedies could be fully symmetric.

Such remedies would give all parties incentives to exercise their

decision-making rights in an efficient manner, regardless of the

legal rule. Essentially, there would no longer be positive or

negative externalities—actors would experience all of the positive

or negative consequences of their actions, which would lead them

to act in an efficient manner.284

Yet, despite the theoretical

advantages of fully symmetric liability rules, such rules have never

been seriously considered because of the administrative challenges

they pose.

Similarly, courts must have more information to administer

a liability remedy than an injunctive remedy.285

A liability remedy

requires courts to calculate how much damage a protected party

suffered from a violation of the law. In contrast, a court does not

need to determine the amount of damages caused to apply

injunctive relief; the court must merely decide whether a particular

action violates the legal rule.286

Moreover, enforcing a liability

remedy requires less information than enforcing a reasonable use

rule,287

but is less likely to bring about an efficient result.288

C. Distributional Consequences

Throughout this Article, we have emphasized how various

legal rules and legal remedies affect the likelihood that the parties

284

POSNER, supra note 20, at 3-4. 285

Note also that enforcing a liability remedy requires less information than

enforcing a reasonable use rule. The reasonable use rule requires a court to

weigh the benefits of an activity against its costs, while a liability rule only

requires a court to evaluate the negative consequences of an activity. 286

See, e.g., Calabresi & Melamed, supra note 4; David McGowan, Website

Access: The Case for Consent, 35 LOY. U. CHI. L.J. 341, 342-43 (2003)

(arguing that injunctive remedies are preferable when bargaining is possible

because judicial cost-benefit analysis is imperfect). 287

The reasonable use rule requires a court to weigh the benefits of an activity

against its costs, while a liability rule only requires a court to evaluate the

negative consequences of an activity. 288

See Part III.A.2, supra.

66

achieve an efficient result. However, this is only half of the story.

As Coase recognized, the choices among legal rules and remedies

have distributional consequences. This is true irrespective of

whether these choices have efficiency consequences. Legally

protected parties may be able to secure cash payments from other

parties that they otherwise would not receive.289

Liability rules can

restrict the prices at which parties are willing to transact.290

This

can be a boon or a bane to individual parties, depending on the

specifics of a given situation.

Because the distributional consequences of these choices

are so context-specific, they are not conducive to analysis in the

abstract. We merely note that, depending on the specific

circumstances of a particular situation and one’s policy

preferences, one might prefer one legal rule or remedy over

another based on its distributional effects, even though that rule or

remedy is less likely to produce an efficient result.

V. CONCLUSION

In essence, the Coase Theorem makes an appeal to reason:

If only everyone could get together at one big table and talk things

out, they would always reach efficient results. Coase devised his

famous theorem to highlight the difficulties involved in bringing

everyone together and negotiating an agreement—that is, the

structural transaction costs that parties face. Our analysis

demonstrates that there are additional difficulties inherent in

Coase’s hypothetical: In many instances, there will be parties who

will not want to let everyone come to the table, and those parties

will erect obstacles to prevent that from happening.

Consequently, the design of legal rules is very important,

even when structural transaction costs are low. There is a trade-off

between the likelihood that a legal rule or remedy will produce

efficient results and the information that courts or legislators must

have to implement it. Fully specified efficient rules guarantee

efficiency, but require the strongest assumptions about the

information available to policymakers.291

Defining legal rights in

ways that track the efficient outcome is likely to encourage

289

See, e.g., notes 31-32, supra, and accompanying text. 290

See Part III.B.1, supra. 291

See Part IV.A, supra.

67

efficiency, but requires hard factual determinations. Similarly,

liability remedies are more likely to promote efficiency than

injunctive remedies, but are more difficult for courts to enforce.

Regardless of the legal regime, it is crucial to recognize

that transaction costs are not merely a feature of the parties’

environment. The parties themselves can—and will—create them

on their own. Thus, Coase’s point that transaction costs are

ubiquitous and important was even more far-reaching than has

generally been recognized—in short, Coase was more right than

perhaps even he knew.