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Hours attended Total Benefit Marginal Benefit
0 0
______
1 400
______
2 700
______
3 900
______
4 1000
______
5 1000
Hours attended Total Cost Marginal Cost
0 0
______
1 25
______
2 75
______
3 175
______
4 375
______
5 1000
Hours Attende
d
Net Benefi
t
Total Benefit
Total Cost
0 ___ ___ ___
1 ___ ___ ___
2 ___ ___ ___
3 ___ ___ ___
4 ___ ___ ___
5 ___ ___ ___
Marginal Benefit
Marginal Cost
___ ___
___ ___
___ ___
___ ___
___ ___
1100
1000
900
800
700
600
500
400
300
200
100
0
800
700
600
500
400
300
200
100
0
Price Quantity Total MarginalDemanded Revenue
Revenue$450 0 $0
______
400 1 _____
______
350 2 _____
______
300 3 _____
______
250 4 _____
______
200 5 _____
Quantity Total Cost Marginal Cost
0 0______
1 250______
2 ____
______
3 ____
______
4 ____
______
5 ____
$250
Price Quantity Profit Total Revenu
e
Total Cost
$450 0 ___ ___ ___400 1 ___ ___ ___350 2 ___ ___ ___300 3 ___ ___ ___250 4 ___ ___ ___200 5 ___ ___ ___
Marginal
Revenue
Marginal Cost
___ ___
___ ___
___ ___
___ ___
___ ___
1400
1200
1000
800
600
400
200
0
300
200
100
0
-100
-200
-300
The following table gives the utility points received by a person from each additional hour of exercise per week, as well as the points that each additional hour costs. Using this table, answer the questions below.
a. Calculate the total benefit and the total cost of exercising for each of the hours in the table.b. Calculate the net benefit of exercising for each of the hours in the tablec. How many hours per week should this person exercise to maximize satisfaction?d. What is the maximum number of net benefit points that can be earned from exercising?
Hours of Exercise
Marginal Benefit
Total Benefit Marginal Cost TotalCost
NetBenefit
0 xxxxx 0 xxxxx 0
1 60 5
2 40 10
3 30 20
4 20 30
5 10 40
6 0 55
Externalities
1. Cost to a third party
2. Benefit to a third party
sweater factory
beach
brewery
• Externalities exist when the market fails to register fully costs and benefits.
– External costs:• When the actions of an individual or group
incur a cost to 3rd party.
– External benefits:• Present when the actions of an individual or
group generate benefits for 3rd parties.
• All of the costs of production are not considered
• the supply curve understates the true cost of production.
• Lower production costs mean more output.
• Too many units are produced.• Pollution problems are often a side
effect.
• With a negative externality, too many units are produced at a price below that which would prevail if all costs were identified and factored into the market process.
Price
Quantity/time
P2
P1
Q1
D
S1
Q2
S2(including external costs)
Ideal price and output
Actual price and outputActual price and output
• The demand curve understates the total value of the output.
• Units that are more highly valued than their costs may not be produced.
• From society’s viewpoint, too few units may be produced.
• With a positive externality, too few units are produced at a price below that which would prevail if all the benefits were identified and factored into the market process.
Price
Quantity/time
P2
P1
Q1
D1
S1
Q2
Ideal price and output
D2(including external benefits)
Actual price and output
Study of economic motives and attitudes of voters and public officials in collective decision making.
• Maximizing Behavior and the Voting Process– A person’s decision about whether or
not to vote in an election depends on his or her marginal benefit and marginal cost of voting.
Public Choice 11-4
• Voters support candidates who will provide them with the most government services and transfer benefits, net of personal costs.
• Rational Ignorance Effect: Recognizing their vote is unlikely to be decisive, most voters have little incentive to obtain information on issues and alternative candidates.
• Because of the rational ignorance effect, voters will be uninformed on many issues; such issues will not enter into their decision making process.
Public Choice Analysis• Voter incentives:
– Rational Ignorance• Choosing to remain uninformed because the
marginal cost of obtaining the information is higher than the marginal benefit from knowing it.
– Special Interest Group• People who share a common position on a
particular issue and actively promote that position.
11-4
• The Politician-Supplier:• Political officials must win elections to be
successful and achieve their goals.
• Rationally uninformed voters often must be convinced to “want” a candidate. $$$
• Legislative bodies are something like a Board of Directors. They …•establish the general direction of policy, •appoint and supervise bureaucrats who
carryout the day-to-day operations of government, and,
•set the budgets of agencies and bureaus.
Public Choice Analysis
1. To maximize satisfaction this person should consume:a. 2.5 units d. anywhere between 1.0 and 6.0 unitsb. 6.0 units c. more than 6.0 units.
2. From 0 to 5.0 units consumed, net benefit is:a. increasing. c. increasing and then decreasing.b. decreasing. d. decreasing and then increasing.
3. When calculating profit accountants include:a. explicit costs. c. explicit and implicit costs.b. implicit costs. d. explicit, implicit, and external costs.4. Excess profit is the profit:a. necessary to continue a business.b. necessary to recover explicit costs.c. necessary to recover implicit costs.d. above what is necessary to continue a business.
Quantity Total Revenue
1 $2002 $3503 $4504 $500
5. Given this table, what is the marginal revenue generated when the third unit is sold?
a. $50. b. $100. c. $110. d. $150.
6. An externality is the:a. secondary effect of an action.b. unintended consequence of an action.c. effect of an action on people or things that were not involved in the
action.d. unknown consequence of an action on people or things who were primary parties in the action.7. Which of the following is an example of a positive externality?a. A person paints her house, which increases the value of her neighbor's house.b. A firm pays higher prices for resources, which increases its explicit
costs of production.c. A firm dumps toxic waste in a river, which causes a community to raise taxes to clean the water.d. None of the above.
8. Which of these would be most likely to produce a negative externality?a. exercise. b. foreign aid.c. air pollution. d. vaccinations.