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8/11/2019 Remittances, transaction costs, and informality
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Remittances, transaction costs, and informality☆
Caroline Freund a ,⁎, Nikola Spatafora b
a World Bank, United States b IMF, United States
Received 14 October 2005; received in revised form 11 September 2007; accepted 12 September 2007
Abstract
Recorded workers' remittances to developing countries reached $167 billion in 2005, bringing increasing attention to these flows
as a potential tool for development. In this paper, we explore the determinants of remittances and their associated transaction costs. We
find that recorded remittances depend positively on the stock of migrants and negatively on transfer costs and exchange rate
restrictions. In turn, transfer costs are lower when financial systems are more developed and exchange rates less volatile. The negative
impact of transactions costs on remittances suggests that migrants either refrain from sending money home or else remit through
informal channels when costs are high. We provide evidence from household surveys supportive of a sizeable informal sector.
© 2007 Published by Elsevier B.V.
JEL classification: F21; F22; F30
Keywords: Remittances; Migration; Money transfer fees
1. Introduction
Recorded flows of workers' remittances to develop-
ing countries have grown from about $70 billion in 2000
to more than $150 billion in 2005 (World Bank, 2006).
Such high levels and rapid growth rates have brought
increasing attention to remittances as a potential tool for
development. Understanding the determinants of remit-
tances is important because these flows reduce poverty,
allow recipients to smooth consumption, and are also
used for investment purposes (World Bank, 2006,
Chapter 4). In times of severe economic distress, remit-
tances may be the primary source of income for many
families, as in Zimbabwe today (Wines, 2007).
The main motivation of this study is to explore the
determinants of remittances. We find that the number of
migrants is the primary determinant of official remit-
tances: an increase in the stock of migrants residingin OECD countries leads to a roughly proportionate
increase in recorded remittances. We also find that high
transaction costs significantly reduce recorded remit-
tances: a one percentage point reduction in transaction
costs raises recorded remittances by 14–23%.
Our analysis offers three contributions. First, in ex-
ploring the determinants of remittances, we improve on
the previous literature by including migrant stocks and
transaction costs in the estimation. Previous work by
Aggarwal and Spatafora (2005) and Sayan (2006)
Journal of Development Economics 86 (2008) 356 – 366
www.elsevier.com/locate/econbase
☆ We are grateful to Irena Omelaniuk for providing us with IOM
studies of remittances in several countries and for helpful discussions,
to Dean Yang for generously providing data and summary statistics on
the mode of remittance transfer in the Philippines, and to Angela
Espiritu for outstanding research assistance. We are also grateful to
Gordon Hanson, Dilip Ratha, Dean Yang, participants at a World Bank
seminar, and two anonymous referees for comments.⁎ Corresponding author.
E-mail addresses: [email protected] (C. Freund),
[email protected] (N. Spatafora).
0304-3878/$ - see front matter © 2007 Published by Elsevier B.V.doi:10.1016/j.jdeveco.2007.09.002
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examined the effects of income on remittances, but their
work focused on the cyclicality of remittances and did not
include migration nor transactions costs, two important
determinants of remittances. In contrast, Faini (2006)
focuses on differences in remitting patterns between
educated and uneducated migrants, and includes migrant stock but neither transactions costs nor other variables that
we find to be important. IMF (2005) and World Bank
(2006) offer a survey of the literature.
Second, we collect new data on the cost of sending
money home and explore how transaction costs vary
with source and home country features. We find that
transaction costs are systematically related to lack of
financial depth and exchange rate volatility. Policies that
encourage financial development in the migrant's home
country and that reduce exchange rate volatility will
help lower official transactions costs.Third, we provide new evidence about informal re-
mittance flows. The analysis indicates that transactions
costs have a large and statistically significant effect
on recorded remittance receipts. This is consistent with
migrants either refraining from remitting money, or else
remitting large amounts through lower cost informal
channels when official transaction costs are high. Evi-
dence from household surveys and from changes in
remittances over time supports the informal-channel
mechanism. Household surveys find that transaction
costs largely affect the way that remittances are sent and
not the amount that is sent. These surveys also provideevidence of large informal remittance flows in many
countries. In addition, there exists a negative correlation
between annual changes in recorded remittances and
changes in Net Errors and Omissions (NEO) from the
balance of payments. This suggests that increases in
recorded remittances are partially offset by declines in
informal remittances. Finally, market observers suspect
that, globally, informal flows range from 50% to 250%
of recorded flows.1
The paper proceeds as follows. The next section
discusses our data, including in particular a new dataset on the transaction costs associated with sending remit-
tances; we also focus on the problems associated with
measuring remittance flows. Section 3 presents results
on the determinants of both remittances and the asso-
ciated transaction costs, using both cross-sectional and
panel techniques. Section 4 develops some insights into
informal remittance flows, both by examining survey
data on remittances and how they are transmitted, and
by analyzing the relationship between NEO and re-
corded remittances. Section 5 concludes.
2. The data
2.1. Remittance inflows
We collected a panel of aggregate data on remittances
from the IMF's Balance of Payments statistics. The
dataset covers up to 104 countries for which workers'
remittances are reported during 1995–2003. On aver-
age, we have five observations per country. As is stan-
dard practice, we define remittances as the sum of three
items in the Balance of Payments statistics: “Compen-
sation of Employees,” “Workers' Remittances,” and
“
Migrants' Transfers.”
Adjustments are however madefor a number of countries, following the advice of IMF
country desks and national authorities.2
Remittances can in general be sent through either
formal or informal channels. Throughout the paper, we
define informal remittances as money transfer services
that do not involve formal contracts and hence are
unlikely to be recorded in national accounts. Formal
channels include money transfer services offered by
banks, post office banks, non-bank financial institutions,
foreign exchange bureaus, and money transfer oper-
ators (MTOs) like Western Union and MoneyGram.
Informal channels include cash transfers based on per-sonal relationships through business people, or carried
out by unofficial courier companies, friends, relatives or
oneself.3
In addition to not capturing the informal sector,
remittance data in the balance of payments do not
always include transactions through MTOs. One study
of 40 central banks in developing countries around the
world indicates that about 60% do not record data from
small MTOs that do not settle through banks (De Luna
Martinez, 2005). Because of this under-recording, a
portion of formal remittance transactions will end up inthe statistical discrepancy in the balance of payments.
1 Celent (2002) estimated that informal remittances would account
for 35% of total remittances (or 54% of recorded remittances) in 2006.
AITE (2005) reports that total remittances currently exceed IMFestimates by 250%.
2 See the Appendix for a fuller discussion of the definition of
remittances and of the various adjustments made to the data. The IMF
Balance of Payments Manual (IMF, 1993) sets out formal definitions
and classifications, while the IMF Balance of Payments Statistical
Yearbook , Part 3, illustrates the diversity of approaches, sources, and
methods used by different countries. In general, data weaknesses are
due to difficulty in obtaining the precise data. See IMF (2005), Box
2.4, for a detailed discussion of the measurement practices of national
statistical agencies and potential improvements.3
Pieke et. al.(2005) provide a survey of informal market definitions,costs, and systems.
357C. Freund, N. Spatafora / Journal of Development Economics 86 (2008) 356 – 366
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Transactions by MTOs that are settled through banks
and are properly identified as remittances will still be
recorded.
In Fig. 1, we present broad trends in remittance
receipts for several different regions. One notable
feature is the rapid increase over the last decade,
particularly for Latin America. This increase likely
reflects rising numbers of migrant workers around the
world. In addition, it may reflect technological devel-
opments and increased competition in the financial-
services industry reducing the cost of sending remit-tances, especially through the formal financial sector.
This could have both encouraged remittances in general,
and led to a shift in transactions from the informal into
the formal sector. Indeed, data from household surveys
(see Section 4) imply that the informal sector is now
quite small and has been declining in several Latin
American countries.4
2.2. Remittance transaction costs
We collected data from Western Union U.S., WesternUnion U.K., and MoneyGram U.S. on the service fees
associated with sending remittances to specific countries
in 2005–06. These transaction costs were computed
assuming a remittance size of $200, and are quoted as a
percentage of this amount.5 Regarding the Western
Union data, we use U.S.-based costs for countries with
large stocks of migrant workers in the United States,
U.K.-based costs for countries with large migrant stocks
in the United Kingdom, and an average of the two costs
in all other cases.6
We then average the Western Unionfees and the Money Gram fees. Results are broadly
similar if we use Western Union data alone.
The cost of remitting small amounts through formal
channels can at times be prohibitively high, owing to
the minimum fee charged by most service providers.
Indeed, in our data (Table 1), the average cost of sending
money through an MTO is around 11%, and the cost of
sending money to Africa is around 13%. Minimum fees
at banks range from $5 to $50 depending on the sending
and receiving countries as well as the product (Sander
and Maimbo, 2003). Fees are usually structured by brackets of transfer values. The average cost declines
sharply as the amount remitted increases, reflecting the
minimum fees.
These data are based on the cost of sending remit-
tances through formal channels. Globally, studies
indicate that informal remittance channels are cheaper
than formal channels, especially banks and MTOs like
Western Union and MoneyGram. For informal remit-
tance channels as a whole, Sander (2003) reports the
average cost of remitting at 3–5% globally, although it
can be higher in specific cases. Likewise, Swanson and
Kubas (2005) report costs of 1–5%. Orozco (2003)estimates the cost of a Hawala/Hundi transaction to be
less than 2% of the value of the principal. Similarly,
remittances through friends, taxi drivers, etc., are also
low-cost compared to formal channels.7
Fig. 1. Remittances received by region1 .
5 We also tried computing the implicit exchange rate spread
(defined as the difference between the exchange rate offered by the
remittance service provider, and the central exchange rate as quoted
by Bloomberg). However, this variable never proved significant,
likely because exchange rates and hence the associated spreads may
fluctuate by large amounts. As a result, values at the end of the period
(when we collected the data) may be a poor guide to period-average
values. Orozco (2003) finds that fixed fees make up the bulk (over
80%) of transactions costs on average.6 The results are robust to using only cost data from the United
States. There is no full sample for the United Kingdom data, as costs
from the U.K. to some Latin American countries were missing.7 For example, in a survey conducted in South Africa, remittances
up to R250 to neighboring countries cost R25 and R50 through,
respectively, friends and taxi drivers, as compared with over R100
through registered banks and over R80 through money transfer agents
like MoneyGram and Western Union (Genesis, 2003). Similarly,
Siddiqui and Abrar (2003) find that costs of informal channels inBangladesh are about 45% of formal costs.
4 In a related vein, the increase in official remittances may also
reflect improved recording of formal flows through MTOs. For
instance, Mexican remittances increased by 95% during 2000–2004.
According to the central bank, a key factor underlying this was that
only after 2002 did Mexico begin recording transactions from MTOsthat do not settle through banks (De Luna Martinez, 2005).
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2.3. Other variables
We also gathered data on the stock of migrant workers
around the world. Where such data are available, they
generally refer to the total number of migrant workersresident in a specific country. Given our interest in
remittance receipts, however, we need data on the total
number of migrant workers originating from a specific
country, regardless of which country they migrate to.
Two such datasets are available. The first is the OECD's
Database on Immigration and Expatriates, which
covers the year 2000. The second dataset, compiled by
Docquier and Marfouk (2005), covers both 1990 and
2000, and also has information on the educational attain-
ment of migrants. Both datasets only cover migrants
residing in the OECD.8 This restriction is unlikely to bias
any estimated coefficients below, provided that, for anygiven country, the stock of migrants residing in the
OECD is closely correlated with (and can therefore be
used to proxy for) the total stock of migrants. We return
to this issue in the estimation.
Other variables used in the estimation include: per
capita domestic output; per capita output in the country
where most of a country's migrant workers are located
(“main host output ”); an indicator denoting the presence
of a dual exchange rate system (“dual exchange rate
dummy”); financial development; the three-firm concen-
tration ratio for the banking sector (“ bank concentration”);and a dollarization dummy. The Appendix provides
further details on precise definitions and sources.
Table 1 reports summary statistics for the variables in
the averaged data. Remittances and the stock of mi-
grants are largest in Latin America and Asia. Countries
in Asia enjoy the lowest transaction costs. In contrast,
Sub-Saharan Africa records the highest transaction
costs.
3. Estimation
This section investigates the determinants of remit-
tance inflows in middle-and low-income countries, as
the determinants of remittances to industrial countriesare likely to be very different. The basic methodology
involves cross-country regressions of remittances on
potential explanatory variables, including remittance
transaction costs. In addition, we analyze the factors
driving these transaction costs through a separate set of
cross-country regressions.
Data on transaction costs are only available for a cross-
section. Hence, the above regressions, which directly
involve such costs, are also purely cross-sectional. That
said, the underlying determinants of transaction costs are
available for a panel starting in 1995. Hence, we check
the robustness of our results through panel regressions of remittances on various explanatory variables, including
the underlying determinants of transaction costs (rather
than transaction costs themselves).
3.1. An analysis of money transfer costs
The data on the transaction costs associated with
receiving remittances are novel. In addition, under-
standing the factors driving these transaction costs is
important to interpreting our results. We therefore start
by investigating the determinants of remittance transac-tion costs. We expect that overall financial-sector devel-
opment might lead to greater availability and lower costs
for remittance services. Lack of exchange rate risk, as
would be the case for dollar remittances being sent to
a dollarized economy, should likewise reduce the cost
of providing remittance services. Again, greater com-
petition in the financial-services industry might have
a powerful negative impact on such costs. Conversely,
defective institutions and greater business risk, as
proxied by our measure of financial risk, would instead
be expected to reduce the willingness of agents to pro-
vide remittance services.
Table 1
Summary statistics of averaged data, 1995–2003
Region Total remittances
(million $U.S.)
Total migrant stock
in 2000 (d000s)
Average fee
in 2005/6
Average dual exchange
rate system
NOB
Sub-Saharan Africa 1948 852 13.02 0.21 24
Eastern Europe and Central Asia 8437 4207 11.66 0.15 20East Asia and the Pacific 11,071 2776 8.40 0.20 10
Middle East and North Africa 8467 1209 11.67 0.25 4
Latin America and the Caribbean 17,064 11,800 10.07 0.25 28
South Asia 13,593 2380 7.58 0.17 6
Total 60,581 23,200 10.91 0.21 92
8
According to World Bank (2006), Chapter IV, migrants residing inthe OECD account for about half of the world migration stock.
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We therefore run the cross-sectional regression
Cost i ¼ a þ b1FinDevi þ b2Dollar i þ b3Risk iþ b4Conci þ ei; ð1Þ
where Cost denotes the (percentage) transaction costsassociated with receiving remittances; FinDev denotes
financial development, as measured by the ratio of do-
mestic deposits to GDP; Dollar denotes a dollarization
dummy; Risk denotes financial risk; and Conc denotes
bank concentration. All variables are constructed as an
average over 1995–2003, except for transaction costs
where we use values for 2005 (the only available year).
The results are presented in Table 2, column 1. The
coefficients on financial development, dollarization, fi-
nancial risk, and bank concentration all have the ex-
pected sign; the first two are statistically significant at
the 5% or lower level. Overall, the results suggest that a
wide range of policies (including measures to increase
competition among remittance-service providers, to in-
crease financial development, and to reduce exchange
rate volatility) would be expected to reduce the trans-
action costs associated with remittances, and hence to
increase recorded remittances.
Domestic wages (as proxied by domestic income per
capita), if not matched by equivalent service-sector pro-
ductivity, might be associated with greater cost of remit-
tance services. However, any such effects are statistically
insignificant (Table 2, column 2).Market-size effects might also be important. In partic-
ular, greater remittances might reduce fees, because of
more competition in large markets or returns to scale. To
control for such effects, we include in the regression
equation total remittances (columns 3 and 4) as well as the
migrant stock (columns 5 and 6). While both have the
expected negative sign, they are only significant in one
regression out of four, while financial development and
dollarization remain significant throughout. In addition,
when remittances or migrant stock are included, the
coefficient on bank concentration drops in magnitude.
This is consistent with the view that the impact of large
markets arises largely through enhanced competition;
given measurement error, it would then be hard to
estimate separately the effect of market size and of competition. Indeed, when bank concentration is not
included in the regression, the coefficient on the migrant
stock becomes statistically significant (column 6). These
results highlight the importance of measures to improve
competition, especially in small markets, where market
size alone will not boost competition.
3.2. Determinants of remittances: Cross-sectional
estimates
Having developed some understanding of remittancetransaction costs, we now analyze a broader issue: the
determinants of remittance receipts. Aggregate remit-
tances are likely to depend on the total number of
migrants, wages in the host economy, and income in the
source economy. Transaction costs and a dual exchange
rate will also lower remittances if they lead to less money
being remitted or to greater use of informal (and un-
recorded) channels. As discussed, transaction costs are
only available for a cross-section. Our basic estimating
equation is therefore the cross-sectional regression
Ri ¼ a þ b1 yi þ b2 M i þ b3 yi⁎ þ b4DualER iþ b5Feei þ ei; ð2Þ
where R denotes the log of workers' remittances reported
in the BOP statistics; y denotes the log of domestic
income per capita; M denotes the log of the stock of
migrant workers; y⁎ denotes the log of main host income
per capita; DualER is an indicator of the presence of a dual
exchange rate; Fee denotes the service fee associated with
receiving remittances; and i indexes the relevant country.
Table 2Cross-sectional regression results: determinants of transaction costs
Explanatory variables (1) (2) (3) (4) (5) (6)
Financial development −0.023⁎⁎ (2.20) −0.023⁎⁎ (2.23) −0.029⁎⁎ (2.64) −0.031⁎⁎⁎ (3.09) −0.024⁎⁎ (2.26) −0.026⁎⁎⁎ (2.83)
Dollarization −2.329⁎⁎⁎ (5.01) −2.349⁎⁎⁎ (5.05) −2.345⁎⁎⁎ (4.82) −2.391⁎⁎⁎ (5.22) −2.182⁎⁎⁎ (4.63) −2.278⁎⁎⁎ (5.17)
Bank concentration 0.016 (1.45) 0.019 (1.63) 0.003 (0.22) 0.007 (0.55)
Financial risk 0.015 (0.32) 0.045 (0.79) 0.01 (0.19) 0.019 (0.40)
Domestic income per capita 0.231 (0.99)
Remittances −0.161 (1.42) −0.171 (1.63)
Stock of migrants −0.206 (1.48) −0.244⁎⁎ (2.03)
NOB 66 66 60 60 66 66
R-squared 0.55 0.56 0.59 0.59 0.57 0.56
Domestic income per capita, remittances, and the stock of migrants are in logs. ⁎⁎
and ⁎⁎⁎
denote significance at, respectively, the 5% and 1% level.Absolute values of robust t-statistics are in parentheses.
360 C. Freund, N. Spatafora / Journal of Development Economics 86 (2008) 356 – 366
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All variables are constructed as an average over 1995–
2003, except for the service fee where we again use values
for 2005.
The results are presented in Table 3, column 1. The
stock of migrant workers residing in the OECD coun-
tries is the main driver of remittances, with an elasticity
close to unity. This suggests that either migration to
the OECD is for most countries a good proxy for over-all migration, or else recorded remittances stem almost
entirely from the OECD.
The service fee has a negative and significant impact
on recorded remittances, consistent with the notion that
higher fees discourage remitters or push them into the
informal sector. The coefficient is economically signif-
icant: a one percentage point increase in fees reduces
remittances by 16%. Put differently, assume that the
average fee to transfer money to developing countries
were reduced from 11% of the transaction amount, the
value observed in our dataset, to 5%, which is close tothe upper estimates of informal costs in Orozco (2003)
and Sander (2003) and to the lowest country-specific
estimates of formal costs in our dataset. Then recorded
remittances would on average almost double.9 At a
regional level, the impact of such a reduction in fees
to 5% would prove especially large for Sub-Saharan
Africa, where costs are currently highest. The next
section discusses in detail how to interpret these results.
The above analysis may be subject to simultaneity
bias if higher remittances lead to lower fees, through
either greater competition or increasing returns to scale
in the provision of money transfer services. To minimize
such concerns, we also use remittances per migrant
and remittances per capita as the dependent variables
(columns 2 and 3), since these can be high even when
overall remittances and migration are low. The servicefee remains significant and the magnitude of the coef-
ficient is roughly unchanged, suggesting that the impact
does not reflect large remittance flows driving down
fees. Finally, since using remittances per migrant and per
capita may not completely eliminate the simultaneity
problem, we also instrument for transactions costs using
beginning-of-period financial development and a dol-
larization dummy, two key determinants of transactions
costs from Table 2. The results are reported in column 4.
The coefficient on the service fee remains negative and
significant.Our measure of economic restrictions, the dual ex-
change rate indicator, also always has a negative impact
on remittances. The effect is not statistically significant,
but it is in the panel regressions discussed later. Overall,
the results suggest that policies aimed at reducing costs
in the remittance marketplace would be associated with
increases in recorded remittances.
Surprisingly, main host-country income per capita has
an insignificant effect on remittances. This likely reflects
the fact that the variable is a very imprecise proxy for
average wages in the full set of countries in which
migrants are actually employed. Domestic income per
Table 3
Cross-sectional regression results: determinants of remittances
Explanatory variables Dependent variable Dependent variable Dependent variable Dependent variable Dependent variable
Remittances Remittances per migrant Remittances per capita Remittances, IVa Remittances, IV b
(1) (2) (3) (4) (5)
Dual exchange rate −
0.255 (0.65) −
0.292 (0.75) −
0.376 (1.03) −
0.169 (0.39) −
0.122 (0.27)Service fee −0.159⁎⁎ (2.60) −0.143⁎⁎ (2.37) −0.137⁎⁎ (2.30) −0.231⁎ (1.83) −0.228⁎ (1.88)
Stock of migrant workers 0.950⁎⁎⁎ (10.72) 0.881⁎⁎⁎ (8.89) 0.814⁎⁎⁎ (4.12)
Migrant share of source
population
0.701⁎⁎⁎ (8.34)
Main host income per capita −0.192 (1.23) −0.214 (1.50) −0.109 (0.79) −0.153 (0.82) −0.143 (0.75)
Domestic income per capita −1.101 (0.58) −0.104 (0.60) 0.168 (0.91) −0.151 (0.78) −0.127 (0.17)
F-stat for fee 18.2 [0.00] 10.7 [0.00]
F-stat for migrant 5.67 [0.00]
Overidentification test 2.27 [0.32]
NOB 92 92 92 77 77
R-squared 0.65 0.08 0.56 0.65 0.65
All dependent variables, and all independent variables except for dual exchange rate and the service fee, are in logs. ⁎, ⁎⁎, and ⁎⁎⁎ denote significance
at, respectively, the 10%, 5%, and 1% level. Absolute values of robust t-statistics are in parentheses, P -values are in brackets.a Instrument for the service fee using dollar dummy and lagged financial depth. b Instrument for log (stock of migrant workers) using the index of geographical remoteness, and regional dummies. Instrument for the service fee
using dollar dummy and lagged financial depth.
9 Note that since the fee is lower, more money would be received
for any given amount sent. However, this effect can at most explain a7% increase.
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capita also has an insignificant effect on remittances. Both
are however significant in the panel estimates.
A final potential source of simultaneity bias is that
remittances may affect migration through family re-
unification and the alleviation of liquidity constraints.
To deal with this potential problem, we instrument for
migration using domestic population, an index of geo-
graphical remoteness (from Djankov et al., 2005), and
regional dummies. The IV results, reported in Table 3,
column 5, are broadly similar to the OLS results.10
3.3. Determinants of remittances: Panel estimates
In order to interpret our findings, including those on
the impact of transaction costs, it is desirable to know
whether the results hold only across countries, or also
over time within a given country. Data on remittances are
available on a panel basis, but data on transaction costs
are only available for a cross-section; as a result, it is not
possible to run directly a panel regression of remittances
on transaction costs. Instead, we now exploit the resultsin Table 2, and allow all variables used there to explain
transaction costs to enter as regressors for remittances in
a panel context. Specifically, we run the panel regression
Ri;t ¼ ai þ b1DualER i;t þ b2FinDevi;t
þ b3Dollar i;t þ b4Risk i;t þ b5Conci;t
þ b6 M i þ b7 yi;t ⁎ þ b8 yi;t þ gt þ ei;t ; ð3Þ
where αi denotes the country-specific fixed effects, γt
the year-specific fixed effects, and all other variables are
as defined previously. The equation is estimated over
1995–2002.
The results are presented in Table 4. The dual ex-
change rate again has the expected sign, and is now
statistically significant at the 10% level. Financial
development (the main determinant of transaction
costs) is significant at the 5% level. As expected, the
stock of migrants has a highly significant effect onremittances, and the coefficient is similar in magnitude to
the one found in the cross-sectional regressions. In
addition, within this sample, remittances are significant-
ly pro-cyclical, as shown by the positive coefficient on
domestic income per capita.11 The elasticity of remit-
tances with respect to main host income always equals or
exceeds unity (and is significant in the regressions
without instruments), that is, increases in host-country
income and hence migrant wages are passed on at least
proportionately to families abroad. All of these results
also hold using remittances per capita as the dependent variable.
One issue is that to the extent that remittances are
channeled through banks, or make their way into bank
accounts, they will directly affect financial develop-
ment. To control for this potential endogeneity, we
instrument for financial development using its twice-
10 We also try using the share of migrants with at least secondary
(or tertiary) education as a determinant of remittances. The estimated
coefficients change sign depending on the specification and are never
significant. In contrast, Faini (2006) finds some evidence that skilledmigrants may remit relatively less.
Table 4
Panel regression results: determinants of remittances
Remittances Remittances per capita Remittances, IVa Remittances per capita, IVa
(1) (2) (3) (4)
Dual exchange rates −0.179⁎ (1.83) −0.188⁎ (1.92) −0.166⁎ (1.74) −0.175⁎ (1.83)
Financial development 0.012⁎⁎
(2.40) 0.012⁎⁎
(2.38) 0.013⁎⁎
(2.09) 0.013⁎⁎
(2.12)Dollarization 0.178 (0.74) 0.16 (0.67) 0.163 (0.69) 0.147 (0.63)
Bank concentration −0.002 (0.80) −0.002 (−0.75) −0.002 (0.82) −0.002 (0.74)
Financial risk 0.008 (1.11) 0.008 (1.18) 0.007 (0.97) 0.006 (0.92)
Stock of migrants 0.930⁎⁎⁎ (2.92) 1.290⁎⁎⁎ (3.73)
Stock of migrants, as share of population 1.139⁎⁎⁎ (4.06) 1.491⁎⁎⁎
Main host income per capita 1.497⁎⁎ (2.09) 1.424⁎⁎ (2.00) 1.15 (1.60) 1.085 (1.53)
Domestic income per capita 0.796⁎⁎⁎ (5.31) 0.790⁎⁎⁎ (5.25) 0.748⁎⁎⁎ (5.07) 0.722⁎⁎⁎ (4.89)
NOB 523 523 508 508
R-squared 0.28 0.25 0.27 0.25
All dependent variables, and all independent variables except for the dual exchange rate and service fee, are in logs. All regressions include country
fixed effects and a time trend. ⁎, ⁎⁎, and ⁎⁎⁎ denote significance at, respectively, the 10%, 5% and 1% level. Absolute values of robust t-statistics are
in parentheses.a Instrument for financialdevelopmentusing itssecond lag. The F -statistic of the instrument fromthe first stage is just over 3.00 for both regressions.
11 This is consistent with Sayan (2006) who finds that remittances
are generally procyclical in developing countries. In contrast, Yang
(2006) finds that remittances increase following natural disasters,suggesting remittances can help offset bad times.
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lagged value; the results continue to hold (columns 3
and 4).12
4. Why are transaction costs so important?
As discussed, empirically observed variations in
service fees have a large impact on recorded remittances.
This result is consistent with either of two hypotheses.
First, migrants refrain from remitting money when trans-
action costs are high. Second, large official transaction
costs encourage migrants to send remittances through
informal channels where transaction costs are lower.
Existing empirical evidence from a number of country
studies suggests that the cost of sending remittances has
little effect on the total amount remitted (formal and
informal), implying that it is the channel of transmission
that is affected. For instance, Gibson et al. (2005) report
that 70% of Tongan migrants would not change theamount sent home if the transfer fee declined.13
Additional evidence that informal channels can be
important comes from household surveys that ask res-
pondents both how much they have received from friends/
relatives abroad, and by what means, including informal
channels. Table 5 reports estimates of the informal sector
as a percentage of total remittances sent, based on surveys
from Armenia, Bangladesh, Dominican Republic, El
Salvador, Guatemala, Mali, Moldova, Philippines, Sene-
gal, and Uganda (see Freund and Spatafora, 2005, for
detailed information about the surveys). There is signif-icant variation in the channel of transmission. In Mali,
Senegal, and Uganda, countries facing extremely high
transaction costs, the bulk of remittances enter informally.
In addition, large informal flows occur in Armenia and
Moldova, where transaction costs are also relatively high.
In contrast, Latin America has a relatively small informal
sector. One explanation is that MTO transmission costs
to Latin America have come down sharply since 1995
(Orozco, 2003). As a result, there may have been a
significant shift from the informal to the formal sector.
Such a shift may account for much of the dramatic increase
since 1995 in recorded remittances to Latin America (seeFig. 1, as well as the discussion in footnote 5).
An alternative way of gauging to what extent the
increase in recorded remittances reflects a move out
of the informal sector is to examine the relationship
between Net Errors and Omissions (NEO), from the
balance of payments, and remittances or migration. If
increases in recorded remittances stem from a move
out of informal channels then NEO should decline as
recorded remittances rise. If instead total remittances
fluctuate for other reasons, such as increased migration,
then recorded and informal remittances are likely tomove in the same direction, resulting in a positive cor-
relation between NEO and recorded remittances. Over-
all, as long as increases in recorded remittances are
Table 5
Informal remittance inflows, selected countries (% of total inflows)
Country Survey data
Mali 70
Senegal 70
Uganda 80Bangladesh 54
Philippines 41
Dominican Republic 15
El Salvador 20
Guatemala 5
Armenia 38
Moldova 47
Sources: Armenia: Roberts, B., and K. Banaian (2004), “Remittances
in Armenia: Size, Impacts, and Measures to enhance their Contribution
to Development,” Special Study for USAID/Armenia, Bearing Point,
October. Based on number of transactions.
Bangladesh: Tasneem Siddiqui and C.R. Abrar (2003), “Migrant Worker
Remittances and Micro-Finance in Bangladesh”.
Dominican Republic: Calculated from “Encuesta de Fuerza de Trabajo,”
2000–2002. Informal sector includes personal and mail.
El Salvador: Calculated from “Encuesta de Hogares de Propositos
Multiples,” 1997. Informal includes family and friends, particular
individuals, and mail.
Guatemala: Survey on the Impact of Family Remittances on Guatemalan
Homes, conducted in 2004 by the Vice-Presidency of Guatemala,
The Central American Bank of Integration, The Bank of Guatemala
and IOM. 2,921 homes were surveyed across 22 “departments” and 170
municipalities.
Mali: ECFIN 2004. Includes only remittances from France.
Moldova: “Moldova Remittance Study,” by CBS AxA, a TNS CSOP
Branch in Moldova, involving inter alia a survey of 3,714 households in
October – November 2004. 1,299 households had at least one member earning a living abroad in 2003 and 2004. Only 65% of remittance
receivers answered question.
Philippines: Survey of Overseas Filipinos, 2000, National Statistics
Office of the Philippine Government. Informal includes others and
brought home by migrant.
Senegal: ECFIN 2004. Includes only remittances from France.
Uganda: Data from IOM, Kampala.
13 Similarly, Yang (2004) shows that, when the Philippine peso
depreciated during the Asian financial crisis, Philippine migrants sent
less money in foreign currencyand roughly the same in pesos,suggesting
that migrants have a target amount they want their family to receive. One
explanation is that many remitters have little option but to send money,
given the severe economichardships faced by their families in the source
country. More generally, existing studies typically find remittances to be
driven by the need to support migrant workers’ families, rather than by
investment considerations alone (e.g., Aggarwal and Spatafora, 2005).
12 Note that measures of financial development may proxy for not only
remittance transaction costs, but also the broader investment climate.
Hence, to the extent that remittances are used for investment purposes,these estimates may overstate the effect of lowering costs on remittances.
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primarily associated with shifts out of informal flows,
NEO will be negatively correlated with remittances. In
addition, assuming that migration increases the remit-
tances that enter informally (as well as formally), NEO
will be positively correlated with migration.
Table 6 reports the results of regressing NEO on
remittances and on migration, using panel data from
1981–2003, and controlling for country and year fixed
effects.14 An increase in remittances is associated with a
decline in NEO (column 1), and an increase in the migrant
share of the population leads to an increase in NEO(column 2). Including both remittances and migration in
the regressions leaves the results roughly unchanged
(column 3). Columns 4 and 5 report the results using the
same sample as column 3, but including remittances and
migration separately; again, the results are similar.
Overall, these results support the notion that year-to-
year fluctuations in recorded remittances are associated
with a shift out of the informal or unrecorded sector to the
formal sector, while the increasing trend in migration
is associated with an increase in both recorded and
unrecorded flows.
5. Conclusions
This paper has explored the determinants of remit-
tances and their associated transaction costs. Not sur-
prisingly, recorded remittance inflows depend positively
on the country's stock of migrants residing abroad. In
the sample, remittances are also pro-cyclical, possibly
reflecting their use to finance investments, and not just
to smooth consumption. In addition, remittances depend
negatively on transfer costs and exchange rate restrictions.
In turn, transfer costs are lower when financial systems
are more developed, and exchange rates less volatile.
The statistically significant and economically mean-ingful negative impact of transactions costs on remittances
suggests that, when costs are high, migrants either refrain
from sending money home or else remit through informal
channels. Given the large informal flows reported in
household surveys and the negative correlation between
remittances and net errors and omissions, we interpret the
results as reflecting a large informal sector. That said,
the informal sector appears to have shrunk over time,
especially in Latin America and Asia. To some extent, this
development has generated misleading impressions about
the true speed at which remittances are growing.Reductions in transaction costs would encourage an
increase in remittance flows, and/or a further shift of
remittance flows towards the formal sector. Such a shift
might yield significant benefits to policy makers and
development workers. First, if policy is being designed
to encourage remittances or stimulate investment, it
is important to know the true size of the flows. Inac-
curate information may lead to inappropriate initiatives.
Second, from an efficiency standpoint, a large share of
informal remittances in an economy suggests that rents to
banks and money transfer providers in the official market
are very large, and there may be simple ways to improvecompetition and increase the remittances received. Third,
there may be positive externalities from using formal
channels (and especially financial institutions such as
banks) to transfer money, including increased access to
credit and the use of financial institutions for savings.
Appendix A. Data sources
This appendix provides further details on the data
used in the essay, and in particular discusses the time-
series employed to construct a measure of remittances.Throughout the essay, regional classifications follow
the current IMF groupings.
The most reliable information available on remit-
tance flows is published by the IMF in its annual
Balance of Payments Statistics. Unless otherwise indi-
cated, remittances were defined, as recommended by
Ratha (2003), as the sum of three items in the Balance of
Payments Statistics: “Compensation of Employees”
(part of the income component of the current account),
“Workers' Remittances” (part of current transfers in the
current account), and “Migrants' Transfers” (part of the
capital account). Specifically, the IMF's Balance of
Table 6
Remittances as a determinant of net errors and omissions
Dependent variable: net errors and omissions/GDP
(1) (2) (3) (4) (5)
Remittances/
GDP
−0.070
(1.48)
−0.080⁎
(1.68)
−0.082⁎
(1.69)Stock of migrant
workers, as
share of source
population
0.083⁎⁎
(2.18)
0.067
(1.50)
0.071
(1.62)
F-test of joint
significance
2.96
(0.05)
Observations 2074 2475 1984 1984 1984
Number of
countries
125 137 123 123 123
R-squared 0.01 0.01 0.02 0.02 0.01
Country and year fixed effects are included in all regressions. ⁎, ⁎⁎,
and ⁎⁎⁎ denote significance at, respectively, the 10%, 5% and 1%
level. Absolute values of robust t -statistics are in parentheses.
14 As noted,we do not have annual data on migration. Rather,migration
is estimated from two data points, and is therefore entered as a country-specific trend.
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Payments Manual, Fifth Edition, defines “Workers'
Remittances” as current transfers made by migrants who
are employed and resident in another economy. This
typically includes those workers who move to an
economy and stay, or are expected to stay, a year or
longer. “Compensation of Employees” instead com- prises wages, salaries, and other benefits (cash or in-
kind) earned by nonresident workers for work per-
formed for residents of other countries. Such workers
typically include border and seasonal workers, together
with some other categories, e.g., local embassy staff.
Finally, “Migrants' Transfers” include financial items
that arise from the migration (change of residence) of
individuals from one economy to another.
Following discussions with the IMF Statistical
Department, the IMF country desks, and national
authorities on the precise construction of the abovemeasures in each specific country, “Compensation of
Employees” was excluded from remittances for several
countries.15 In general, the “Other Current Transfers”
item was not included in the definition of total
remittances. However, the Balance of Payments Statis-
tics Yearbook specifies explicitly that migrants' remit-
tances are in fact recorded under “Other Current
Transfers” for Kenya, Malaysia, and the Syrian Arab
Republic. Additional adjustments or additions to the
series for remittances were made on the basis of
information received from IMF country desks and
national authorities.16,17
Details of some other key variables are as follows.
• Domestic output . This is measured as real GDP per
capita. It comes from the Penn WorldTable Version 6.1.
• Main host output . For each country i, this is measured
as real GDP per capita in the country j which con-
tains the largest share of country i's migrant workers.
It is from the Penn World Table Version 6.1 and the
above-mentioned migration data from the OECD.
• Dual exchange rate dummy. This binary indicator
specifies if a country has more than one exchange
rate that may be used simultaneously for different
purposes and/or by different entities. It comes from
the IMF's Annual Report on Exchange Arrange-
ments and Exchange Restrictions, 2003 (ARREAR).
• Financial risk . This indicator assesses a country's
ability to pay its way by financing its official, com-mercial and trade debt obligations. It is based on the
following components: foreign debt as a percentage
of GDP, foreign debt service as a percentage of
exports of goods and services, current account as a
percentage of exports of goods and services, net
liquidity as months of import cover, and exchange
rate stability. It comes from the International Country
Risk Guide.
• Bank concentration. This measure is calculated by
taking the assets of the three largest banks in a
country as a share of the assets of all commercial banks. It is drawn from the World Bank's Financial
Structure Database.
• Dollarization dummy. This binary indicator equals
unity for any year when a country is officially
dollarized.
• Restrictions on foreign-currency deposits held
abroad . This indicator specifies whether resident
accounts that are maintained in foreign currency and
held abroad are allowed. It is drawn from ARREAR.
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