Exposing corruption: How does electoral competition affect politician behavior? Farzana Afridi a Amrita Dhillon b Eilon Solan c June 30, 2016 Abstract We build a simple game theoretic model to capture the effect of electoral competition on re- election concerns when there is public exposure of corruption through mandated audits of government expenditures. The setting is one where two parties compete in elections, however, the incumbent candidate is fixed to begin with. We show that in equilibrium, corruption has a non-monotonic relationship with electoral competition. If the election is safe for the incumbent (low competition) or if it is extremely fragile (high competition) then corruption is higher, but for intermediate levels of competition, corruption is low. We use the model’s predictions to test our hypotheses using data gathered on audit findings of a large public program from Indian villages in a southern state during 2006-10 and on elections to the village council headship in 2006. Our results largely confirm the theoretical results, but also suggest that the impact of electoral competition varies by whether theft is from the public or private component of a good. Keywords: Corruption, Electoral Competition, Audit JEL Classification: H4, H7, I3 _________________ The authors thank seminar participants at the ISI (Delhi), the NOPOOR conference (Delhi) for comments and suggestions. This paper has been supported by CAGE, PPRU, NOPOOR and the IGC. a Economics and Planning Unit, Indian Statistical Institute, New Delhi. b Department of Political Economy, King's College London. c School of Mathematical Sciences, Tel Aviv University.
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Exposing corruption: How does electoral competition affect politician behavior?
Farzana Afridia Amrita Dhillonb
Eilon Solanc
June 30, 2016
Abstract
We build a simple game theoretic model to capture the effect of electoral competition on re-election concerns when there is public exposure of corruption through mandated audits of government expenditures. The setting is one where two parties compete in elections, however, the incumbent candidate is fixed to begin with. We show that in equilibrium, corruption has a non-monotonic relationship with electoral competition. If the election is safe for the incumbent (low competition) or if it is extremely fragile (high competition) then corruption is higher, but for intermediate levels of competition, corruption is low. We use the model’s predictions to test our hypotheses using data gathered on audit findings of a large public program from Indian villages in a southern state during 2006-10 and on elections to the village council headship in 2006. Our results largely confirm the theoretical results, but also suggest that the impact of electoral competition varies by whether theft is from the public or private component of a good.
_________________ The authors thank seminar participants at the ISI (Delhi), the NOPOOR conference (Delhi) for comments and suggestions. This paper has been supported by CAGE, PPRU, NOPOOR and the IGC. aEconomics and Planning Unit, Indian Statistical Institute, New Delhi. bDepartment of Political Economy, King's College London. cSchool of Mathematical Sciences, Tel Aviv University.
1. Introduction
Politicians can transform policies and institutions. Evidence suggests that if political
leadership is committed, corrupt institutions can change rapidly (Svensson, 2005; Acemoglu
and Jackson, 2011). Therefore, the persistence and high incidence of corruption in low
income democracies (Transparency International, 2015; Svensson, 2005) is puzzling: if
electoral competition is fair, and if voters care about honesty, voters can punish corrupt
incumbents by voting them out of office. Forward looking incumbents will then respond to
these incentives by lowering corruption. We investigate this question in a context where legal
sanctions for punishing the corrupt are not binding but there exists mandated exposure of
corruption through audits of public expenditures. Can mandated exposure of corruption, in
the presence of electoral competition, discipline politician behavior?
It is fairly well established that corruption is costly, both in terms of efficiency and
equity in the provisions of government services in developing countries (Pande and Olken,
2012). From a theoretical point of view, if we assume that an incumbent’s utility increases in
bribes taken and the length of time in office, then her effort will be a function of her inherent
ability and desire to control corruption, which itself depends on the link between the cost of
the effort (or the illegal gains from office) and the chances of being thrown out of office by
voters. The behavior of an incumbent politician between elections can be disciplined by the
threat of exposing corrupt behavior and voting her out, but too much discipline might lead to
a breakdown of the implicit contract between voters and incumbent. It is often pointed out
that being corrupt may itself lead to re-election benefits.
In this paper we investigate the link between political competition and corrupt
behavior when corruption is revealed publicly through mandated audits. We define the
governance as the effort that an incumbent leader puts into preventing illegal personal gains
by political or bureaucratic functionaries. The higher is this effort, the lower would be the
leakages from public funds and higher the quality of governance. In the data, therefore, we
can observe the politician’s effort in terms of the level of corruption in her constituency while
electoral political competition can be represented by how closely fought an election was or
the margin of electoral victory.
Ades and Di Tella (1997) provide evidence that shows that if there is low political
competition, then the quality of governance is low. On the other hand, more competition does
not necessarily lead to higher quality of governance. For example, Aidt et al.(2009) point out
that “In India, we appear to be witnessing the nearly wholesale takeover of large chunks of an
established democratic political system by persons with criminal records. Moreover, this is
occurring even as Indian party politics becomes increasingly competitive”. Moreover,
electoral competition may not reduce corruption but change its nature (Booth et al., 2011) -
with competition, vote buying becomes more attractive than other types of rent seeking.
There is thus little consensus in the literature on the link between quality of governance and
competition. As with economic competition, at first glance, welfare is expected to rise as
political competition increases. Highly competitive political environments lead to more
innovation and better economic outcomes (Acemoglu and Robinson, 2006). Besley et al.
(2010) show that for US municipalities, competition has a positive effect on economic
outcomes. Bannerjee and Pande (2009) point out that competition improves the quality of
governance when voters vote on multiple dimensions. Thus, there is agreement in the
literature that the disciplining factor for politicians is their incentives for re-election and thus
their self-perceived probability of winning again. Ferraz and Finan (2011), thus, find that
when the probability of winning the next election by incumbents is high corruption tends to
be lower in Brazilian municipalities.
However, benefits of ex-ante competition can be mitigated by various factors, such as,
resource constraint (release of funds from the central government especially if the local head
is not affiliated to the political party running the centre), asymmetric information regarding
costs of public projects and a legal system which provides immunity to politicians. For
instance, Bardhan and Yang (2004) develop a theoretical model that suggests that in the event
of asymmetric information between the politician and the electorate there exists an optimal
level of political competition beyond which aggregate welfare can fall due to reduced public
investments. Moreover, if the incumbent doesn’t deliver on a public program, a political
contestant can indulge in vote buying during elections and then try to recover that
expenditure by embezzlement of public funds during her term in office. For instance,
Persson, Roland and Tabellini (1997) refer to the need to allow some graft by the politician as
“power between elections”. Acemoglu and Robinson (2000 and 2002) investigate the
incentives to undertake investment when the short term effects of investment are
destabilizing, and political competition may exacerbate this problem (Aidt et al., 2009).
The innovation in our study is two-fold. First, unlike previous theoretical models
which assume asymmetric information – voters get information about incumbents from
signals such as actual spending on public good or from benchmarking with neighboring
jurisdictions (Besley and Case, 1995) – we study the effect of electoral competition in a
context where voters can observe the level of corruption by the incumbent. Recent literature
on disclosure of information on degree of corruption – audits make information available to
voters (Ferraz and Finan (2008), Bobonis et al. (2009). Second, we provide a general, but
nuanced framework for understand the underlying relationship between political competition
and governance by taking into account the possible non-monotonicity of this relationship and
the endogeneity of competition to corruption.
We construct a reduced form model to see what happens when a single agent
(incumbent) chooses how much to “steal” from a pie of size 1. In the next period there is an
election. Voters vote on the basis of ideology and the observed corruption level, relative to
the challenger who comes with a known ideology and an unknown reputation for corruption.
The trade-off is between stealing a lot now and getting voted out against any challenger, or
stealing less now and being able to stay in power for a longer time. We derive the stationary
equilibrium level of theft in office and show how it varies with the level of competition
measured by the closeness of the election. We can show that in this simple set up, even when
voters can perfectly observe corruption, too little or too much competition leads to higher
levels of theft, while a medium-level competition leads to lower levels of theft. Moreover, if
the electoral advantage is with the incumbent then as competition increases, corruption
decreases. If the electoral advantage is with the challenger, then increases in competition
have no impact on corruption. The story is thus more nuanced than it appears in the literature.
A critique of the reduced form model is that the challenger has a passive role: in
reality the challenger will propose platforms based on the competitiveness of the election. We
show that the same result can be obtained in a more realistic (and more complicated) set up
where there are both parties and candidates. While parties take into account the effect of
corruption on the probability of winning, they are composed of candidates who do not
internalize the effect of their own actions on the probability of winning and thus sometimes
the incentive constraint may be binding. Thus, we show that even though parties always
respond to higher competition by reducing corruption, the incentive compatibility constraints
imposed by candidates imply that corruption is also high when competition is too stiff.
We test our theoretical predictions using survey and secondary data on one of the
largest public sector projects in India: the National Rural Employment Guarantee Act
(NREGA) - a rights based program that aims to guarantee 100 days of annual work to rural
households willing to volunteer adult labor to rural public works. The major problem that
plagues studies on corruption is lack of objective measures of corruption. However, a novel
feature of the NREGA, distinct from previous workfare programs in India, is the mandatory
audits of projects implemented under the program. The Act envisages that competent audits
will be organized by the beneficiary households at regular intervals. The guidelines thus
make audits and stakeholder participation therein, the main mechanism to ensure
transparency and the accountability of those in charge of program implementation. As is true
with most public programs in developing countries, NREGA has also been besieged with
concerns about theft and leakage of public funds (Afridi and Iversen 2013).
Two sources of data are available for the empirical analysis. We use panel data on the
implementation of the program in the state of Andhra Pradesh during 2006-11, a pioneer in
institutionalizing audits of NREGA projects. We measure leakages of public funds using the
audit data as well as the program expenditures and employment generated. This is coupled
with data on village councils, responsible for planning and the subsequent execution of at
least 50 percent of all NREGA works in villages within its purview, and the direct elections
of village council heads for a five year term in 2006. In addition, we have also accessed data
on the candidates who stood for election and the closeness of the election at the sub-district
and district level for our sample. Finally, our data allow us to inquire whether electoral
competition affects the nature of corruption. All corruption may not be viewed as equally bad
from the voters’ point of view – the incumbent may prefer to pilfer from the public
component of the program rather than its private component when political competition is
perceived to be high (Olken, 2007).
The remainder of the paper is organized as follows. In section 2 we discuss our
theoretical model and its predictions which can be tested empirically. Section 3 provides the
contextual background for the empirical analysis. The data and methodology are discussed in
section 4. Section 5 examines the empirical findings and section 6 concludes.
Section 2: Model
In the one dimensional model of political competition, if voters are united against corrup-
tion and if corruption is observed, then parties should compete to be seen as less corrupt.
This logic breaks down when either of these assumptions is violated. E.g. if the level
of corruption is imperfectly observed then levels of corruption depend on the signalling
mechanism. The idea of asking whether electoral competition enhances accountability and
outcomes was raised quite early on in Besley et al (2008). Our model has imperfectly ob-
served corruption, audits as a monitoring tool, and competition between parties. In the
literature there are models that are similar in that they have both parties and candidates
(Besley (2008), Banerjee and Pande (2009)) but no incomplete information, models with
incomplete information but without competition (Ferraz and Finan (2011)), or models of
competition without audits (e.g. Svaleryd and Vlachos (2008)). None of the existing papers
combine the elements of party discipline and moral hazard with competition. There are also
papers that discuss how instability of a regime a↵ects corruption in a non monotonic way
(eg. Campante et al (2008)) but their driving force is quite di↵erent.
The model builds on the fact that elections at the gram panchayat (village) level are
run on party lines. The process involves selecting candidates to run for the local elections.
A large part of electoral success is based on the success of various public redistribution
programmes like NREGA. Parties are not individuals- they are composed of candidates who
may or may not follow what is in the party’s best interest - incumbent candidates do not
internalize the e↵ect of their own behaviour on the party reputation. We find that a result
of this incentive compatibility restriction on party’s reputation levels, sti↵ competition may
sometimes lead to worse outcomes in terms of corruption. The role of audits as a source to
prevent candidates from stealing even more is crucial- in the absence of audits candidates
could steal much more than what the party reputation reflects.
While we can get the non monotonicity very easily in a reduced form model where there
are only candidates, no incomplete information, it comes at the cost of assuming that there
is an asymmetry between incumbent and challenger. The challenger is assumed to have a
reputation that does not depend on �.
There are three sets of players in the game: parties, candidates and voters, and we
discuss each one separately.
Parties: There are two parties L and R, with fixed platforms located at opposite ends
of an ideology spectrum [�1, 1]. Parties compete in a large number of constituencies. We
consider a constituency i which is characterized by the position of the median voter �i
. We
present results for a representative constituency with median �, so from now on we drop
the subscript. We will assume throughout that � < 0, so that party L is the larger party.
Each party has two decision variables.
One decision variable of each party k is the corruption level xk
= x
k
(�) 2 [0, 1] at the
constituency as a function of its margin �. This variable is determined once and for all at
the outset of the game, and it represents the fraction of the fixed pot of money that can be
embezzled/stolen. Parties care about winning and rents, so that the party’s payo↵ is
1X
t=1
�
k�1x
k
P(Party k is in power at stage t).
In addition, at every stage the party may decide to change its current candidate in the
constituency.
Candidates: Each party k has a pool of candidates in the constituency, and at every stage
selects one of its candidates as its representative. If elected, the candidate determines his
own corruption level yk
. Candidates care about winning and rents, so that his payo↵ is
1X
t=1
�
k�1y
k
P(the candidate is in power at stage t).
Voters: There is a continuum of voters distributed on the ideology space according to a
CDF F with median �. Voters care about ideology and about corruption levels. Consider a
voter j with ideal point zj
2 [�1, 1]. Suppose candidates follow the party line. Then voters’
utility from having each party in power is given by:
U
L
j
= �x
L
� (zj
+ 1)2, U
R
j
= �x
R
� (zj
� 1)2.
If candidates do not follow the party line, voters will take adjust expected corruption ac-
cording to equilibrium beliefs.
Election Mechanism:
Each Voter votes according to his or her utility function. In addition, there is a random
(anti-incumbency) shock ⇠ before elections, which is uniformly distributed in the interval
[�", "], where " > 0. Therefore, Party L wins the elections if xL
+(�+1)2+⇠ < x
R
+(��1)2
while party R wins if xL
+(�+1)2+⇠ > x
R
+(��1)2. Since the random shock ⇠ has a density,
the probability that the election ends with a draw, that is, xL
+(�+1)2+⇠ = x
R
+(��1)2,
is 0. Thus, " can be interpreted as the level of uncertainty in the outcome of the elections.
Note that xL
+ (� + 1)2 + ⇠ < x
R
+ (� � 1)2 if and only if xL
+ 4� + ⇠ < x
R
. Therefore
the role of ⇠ is to change the swing voter in a random way. When " is small, the outcome of
elections is determined by the corruption levels, while if " is high, the outcome is random
even if the quantity x
L
� x
R
+ 4� is far from 0.
The Timeline of the Game:
The timeline of the game is as follows:
• At the outset of the game the two parties learn the median �, and set their corruption
levels xL
and x
R
.
• At every stage,
– The incumbent candidate, who is from party k, chooses a level of corruption y
k
.
– With probability 1� q an audit takes place and reveals yk
.
– Voters observe x
k
, the result of audit (if an audit took place), yk
. The election
takes place and a new incumbent is elected.
Remark 1 We assumed that the parties set their corruption level once and for all at the
outset of the game. The results would not be a↵ected if the parties could have changed their
corruption level.
Analysis
The solution concept that we study is perfect Bayesian equilibria. The game that we
presented has a multitude of such equilibria. For example, there is an equilibrium in which
both parties set x
k
= 1, and voters vote for Party L unless it or its incumbent deviated,
in which case they vote for Party R. There are also time-dependent equilibria, for example
equilibria in which voters expect the party in power to replace its incumbent in every odd
period.
As the game is stationary, we will be looking for a perfect Bayesian equilibrium which
is stationary. Moreover, we we will look for an equilibrium in which the decisions of both
parties and opportunist incumbents are optimal without punishment, and voters punish
deviations from this optimal behaviour.
The Parties’ Decision Problem
The volatility of election outcomes depends on the distribution of the aggregate shock ⇠.
Since we assume that it is uniformly distributed, what matters is the interval over which
the shock is distributed [�", "]. When " is very large then the average corruption may be
driven less by competition and more by the volatility of preferences.
Denote by P
L
(xL
, x
R
) = P(party L wins) the probability that the L party wins. The
next lemma describes the probability that Party L wins elections as a function of the parties’
levels of corruption.
Lemma 1 The probability P
L
(xL
, x
R
) is given by
P
L
(xL
, x
R
) =
8>><
>>:
1 " x
R
� x
L
� 4�,xR�xL�4�+"
2" �" x
R
� x
L
� 4� ",
0 x
R
� x
L
� 4� �".
(1)
Since the situation is stationary, in the absence of candidates each party k maximizes
the quantity x
k
(�)Pk
(xL
, x
R
). This generates the choice of xL
as below.
Lemma 2 If there is full discipline among candidates then the equilibrium corruption levels
x
⇤L
and x
⇤R
, and the probability that in equilibrium party L wins elections are given by the
following table:
• If �� � 12" and �� � 1+"
4 , then x
⇤L
= 1, x⇤R
= 0, and P
L
(x⇤L
, y
⇤L
) = 1.
• If �� � 34" and �� 2�"
4 , then x
⇤L
= �4�+"
2 , x
⇤R
= 0, and P
L
(x⇤L
, y
⇤L
) = "�4�4" .
• If �� � 3(1�")4 , �� � "�1
4 , and �� 1+"
4 , then x
⇤L
= 1, x
⇤R
= 1+4�+"
2 , and
P
L
(x⇤L
, y
⇤L
) = �4��1+3"4" .
• If �� 34" and �� � 3
4(1 � "), then x
⇤L
= " � 4�3 , x
⇤R
= " + 4�3 , and P
L
(x⇤L
, y
⇤L
) =�4�+3"
6" .
• If �� "�14 then x
⇤L
= x
⇤R
= p
L
(x⇤L
, x
⇤R
) = 1.
The figure below shows the various possible solutions we could have depending on ".
��
0 = 3(1� ✏)
��
0 = 1 + ✏
��
0 = 3✏
��
0
✏
x
⇤L = ✏� �0
3
x
⇤R = ✏+ �0
3
PL = ��0+3✏6✏
x
⇤L = ��
0 � ✏
x
⇤R = 0
PL = 1
x
⇤L = 1
x
⇤R = 1+�0+✏
2
PL = �1��0+3✏4✏
x
⇤L = 1
x
⇤R = 0
PL = 1
��
0 = ✏� 1
x
⇤L = 1
x
⇤R = 1
PL = ��+✏2✏
0 10
2
Region A
Region B
Region C
Region D
Region E
Figure 1: Corruption levels and probability of winning.
The interpretation of the result is as follows. When the noise is large and the margin
is not too large (Region E), the probability of being reelected is low, and therefore parties
will steal as much as they can (x⇤L
= x
⇤R
= 1) and both parties have positive probability of
being in power P
L
(x⇤L
, x
⇤R
) 2 (0, 1). When the margin is high (Region A), the large party
wins elections with probability 1 even if it steals all the pot. When the noise is large and the
margin is not too large (Region C), the large party prefers to steal all the pot, even though
this causes it not to be elected always. When the noise is small (Region B), the large party
will not steal all the pot and will always be in power. When the noise is medium and the
margin is not too large (Region D), both parties steal, and both may win elections.
Our interest in this paper is on the relationship of competition and corruption. Thus
we focus on an " that is relatively small.
Lemma 3 In the absence of candidates, the expected corruption level is monotonic nonde-
creasing in ��, if and only if " 34 .
The Candidates’ Decision Problem
In this section we analyze the decision problem of the candidates, assuming the parties
use the behaviour calculated above.
Recall that �� � 0; that is, party L is the larger party.
Lemma 4 Assume (1) that the parties use the following strategies:
• The parties set corruption levels to x
L
= x
⇤L
and x
R
= x
⇤R
, respectively as long as
��
k
> ��
k
and x
k
= 1 when ��
k
��
k
.
(2) Voters have the following beliefs:
• If an incumbent who was audited and found to steal x
⇤k
voters believe that he will steal
x
⇤k
every period.
• If an incumbent who was audited and found to steal y
k
6= x
⇤k
then voters believe he
will steal 1 every period.
Then for every " that satisfies " < min(34 ,1�1
2 �
1�12 q�
) there exists � = �
k
(�, q, ") > 0 such
that
• If �� < ��
k
then the best response of an incumbent of party k is to steal y
k
= 1.
• If �� > ��
k
then the best response of an incumbent of party k is to steal y
k
= x
⇤k
.
The lemma in particular proves that the best response of the incumbents of the larger
party is decreasing: when there is high competition (�� is small) and the party’s corruption
level is low, the incumbent steals 1, while when there is low competition (�� is large) and
the party’s corruption level is high, the incumbent steals x
⇤L
. Note that the probability of
winning for each party in the interval [0,��] is 1/2. Thus in this equilibrium, the two parties
alternate in power and steal the maximum amount, We would like to find an equilibrium
with full party discipline. Suppose the audit reveals y
K
6= x
k
, then voters believe that he
will steal 1. Given these beliefs the incumbent would either follow party discipline and steal
x
k
or steal 1. Then the party could o↵er the incumbent a slightly higher amount, x̃k
> x
k
that makes him indi↵erent between stealing 1 and following the party line. Of course the
probability of winning changes as well. We conjecture that this equilibrium implies that
corruption is first decreasing and then increasing with competition.
Proposition 1 Assume that � < 0 and " < " < min(34 ,1�1
2 �
1�12 q�
). There exists a Perfect
Bayesian Equilibrium where party k proposes the strategy: x
k
= x
⇤k
(�, ", �, q) for �� �
��
k
(�, q, ") and x
k
= 1 for �� < ��
k
(�, q, "). If audit reveals y
k
6= x
k
voters believe that
the incumbent will steal 1 in future.
In this equilibrium, candidates follow the party discipline as long as competition is
not too sti↵. When competition is very sti↵ they will deviate. Given that when �� <
��
k
(�, q, "), both parties choose x
k
= 1, voters are indi↵erent between the two and the
probability of winning is 1/2,
The figures below present the corruption levels of the parties and the incumbent candi-
dates when " = 12 .
��
CorruptionLevel
✏ = 0.5
34
20
1 x
⇤L
x
⇤R
Figure 2: Corruption levels as a function of competition.
The straight lines in the figure show the corruption levels of the 2 parties, while the
curved line shows the average corruption. As we see, the average corruption is monotonically
decreasing with an increase in competition (�� ! 0).
�
yL
1 2�1�2�
Figure 3: Corruption level yL
at " = 12 .
The figure shows how the corruption level of an incumbent of an L party changes as the
bias towards him goes from being certain to win, to when he is certain to lose
3. Background – The National Rural Employment Guarantee Program
The National Rural Employment Guarantee Act (NREGA, 2005) mandates the
provision of 100 days of manual work on publicly funded projects to rural households
in India. The Act envisions a rights based approach – rural adults can demand work at
a mandated minimum wage. The program was initially implemented in the country‟s
poorest 200 districts in February 2006, with 130 additional districts added in the next
stage (2007) and national coverage thereafter (2008). In 2011-12, the Act had
provided employment to almost 40 million households at an annual expenditure of
more than $8 billion, making it one of the most ambitious poverty alleviation
programs in India to date.
While the primary objective of the program is provision of employment, it
also aims to create durable community assets, viz. irrigation canals, water
conservation, roads and other rural infrastructure. The NREGA, therefore, mandates
that at least 60 percent of the program expenditures be on wage payments and the
remainder on the materials used for the rural projects. A novel feature of the NREGA,
unlike all other public programs in India, is mandated audits of program expenditures
by local stakeholders at the village level, hence referred to as „social‟ audits.
Grass roots institutions, i.e. directly elected village, sub-district and district
level governments (or panchayats) under India‟s decentralized system of governance
(the Panchayati Raj system created by the 73rd amendment to the Indian constitution
in 1992) have a leading role in the planning and implementation of NREGA works.
In particular, the portfolio of projects to be implemented under the program has to be
prepared by and follow the priority expressed by an assembly of residents of a Gram
Panchayat (GP), a collection of 3-4 villages. The leader of the GP, directly elected by
its adult residents, is overall responsible for decisions made by the GP. Further, at
least 50 percent of the NREGA projects have to be implemented by the GP.
A. The administration of NREGA projects in Andhra Pradesh
This paper uses data from the state of Andhra Pradesh (AP).1 As of 2011 AP was
India‟s fifth largest state in terms of population (Census, 2011) and among the leading
states in NREGA implementation due to consistently high generation of NREGA
employment and its unique solution to the challenge of credible auditing of NREGA
projects. The state has conducted regular and systematic audits of NREGA projects
(unlike in other states of India where audits, are either not conducted or conducted in
an ad-hoc and unsystematic manner) by vesting its responsibility within an
autonomous arm of its Department of Rural Development. The state, therefore, claims
to maintain high levels of accountability and transparency in program
implementation.2
Although village councils in AP are typically less autonomous than in some
other states of India (Ban and Rao, 2008), they maintained a crucial role in managing
and executing NREGA projects during the period of our study.3 First, the Gram
1 In 2014 Andhra Pradesh was bifurcated into two separate states – Andhra Pradesh
and Telangana. The data in this paper are until 2010 and includes villages in both AP
and Telangana.
2 For a fuller account of the genesis and evolution of the AP „social audit model‟, see
Aiyar et al. (2013).
3 Through a Government of Andhra Pradesh order in December 2007, the
administrative functions relating to the implementation of all projects under the
NREGA were devolved to Panchayati Raj institutions (G.O. Ms. No. 571)
(www.rd.ap.gov.in).
Rozgar Sevak or the Field Assistant (FA), a resident of the GP who assists the village
council in NREGA implementation, was appointed on the recommendation of the
village council. 4 The FA represents the direct interface of beneficiary households
with the program. Second, the sarpanch selected suppliers of the material inputs to
projects implemented under the program and was therefore well positioned to fudge
material expenditures in connivance with the technical staff (viz., Assistant Engineers,
Technical Assistants and/or the suppliers) as suggested by anecdotal evidence from
the field. The village council and its leader, thus, are accountable for efficient
program implementation and the labor and material expenditures on the NREGA
projects. Given the scale of the NREGA program, funds at the grassroots level
increased manifold following the passing of the Act in 2005 (Afridi, 2008).
B. The audit process in AP5
4 Data on the process of FA appointments from our GP survey suggests that in the
appointment of both the first FA and the latest, the village council had the main say in
at least 80 per cent of the GPs. In about 40 per cent of appointments, village councils
controlled the entire selection process with no involvement of the sub-district
bureaucracy. The FA assists the GP in the following processes: registration of
households for job cards, verification of registration applications, distribution of job
cards to „registered‟ households, receipt of applications for employment and reporting
the demand to the MPDO, informing applicants to report for work, maintenance of
attendance records at work sites, verification and closure of labor records every week
for weekly wage payments. 5 See Aiyar et al. (2013) for a detailed discussion of AP‟s audit model.
The AP audit process is unique, combining a top-down approach with grass-roots,
beneficiary participation. The first step in conducting the audit of NREGA projects is
a notification to the relevant sub-district (or mandal) office with reference to the Right
to Information obligations and requesting unrestricted access to the records on wage
and materials payments by the state‟s independent audit body. A team, comprising
state and district auditors, along with residents of the mandal to be audited (but not of
the audited GP to prevent intimidation and ensure that audit outcomes are unbiased)
conduct a two-day workshop on NREGA rights and regulations and, how to conduct
the audits. Following the training audits are organized in all GPs of the mandal over a
week. In each GP, official labor expenses are verified by visiting labourers listed in
the worksite logs („muster-rolls‟). Complaints by individuals or groups of
beneficiaries and the audit team are recorded and attested using a standardized audit
report template.6 For verification of material expenditure, the audit team is mandated
to undertake worksite inspections. Since the verification of material expenditure is
typically perceived to be more complex and demanding, the works-site inspections
are typically carried out by state and district auditors of the team.
Once the audits of all GPs have been completed, a mandal level public hearing
to discuss the audit findings is organised with mandatory attendance for all
implementing officials. Those present typically should include „wage seekers from the
villages in the mandal, the social audit team, key implementing officials, members of
the vigilance cell, elected representatives and a district-level ombudsman (Aiyar et al.,
p. 261)‟. Complaints are read out, testimonies verified and accused officials given an
6 The auditors are expected to verify labour records for 100 percent of the
beneficiaries. This may not be true in practice.
opportunity to defend themselves. The scope for frivolous complaints is therefore
minimal, if at all.
After the “public hearing” a decision taken report is created by the officer
presiding over the hearing. In this report the responsibility for each confirmed
malfeasance is pinned on a programe functionary or, as the case may be, on multiple
functionaries.7 Research suggests, however, that the guilty often escape legal or
administrative penalties (Afridi and Iversen, 2013).
The audit process, therefore, is initiated and lead by the state but it assimilates
local stakeholders into the process of appraising program expenditures. Systematic
and standardized audits have been carried out in all 23 districts of the state with an
average of over two rounds of audits completed per mandal/GP between 2006 and
2010.
4. Data and metholodgy
A. Data
Our audit data were extracted and codified from the official and original, audit reports
for 100 randomly sampled mandals across eight districts of AP.8 In each randomly
7 The audit body has created checks and balances within the audit process such that
the programe functionaries who are being audited, do not corrupt the auditors
themselves. 8These eight districts were Mahbubnagar, Medak, Nizamabad, Warangal and
Khammam (north or Telangana region, now part of Telangana state), Anantpur and
Kurnool (south or Rayalseema region) and Guntur (west or coastal region). NREGA
was implemented in February 2006 in all these districts, except Kurnool and Guntur,
which implemented the program from April, 2007 onwards.
chosen mandal, three gram panchayats were selected based on the following criteria:
the GP which was the administrative headquarter of the mandal, one GP randomly
selected from all GPs reserved for a woman sarpanch and one randomly selected from
GPs not reserved for a woman sarpanch in that mandal in 2006.9 We, thus, have a
sample of 300 GPs from 100 mandals.
The NREGA audit reports contain data at the GP level. They have two
components: a standard audit report card which records the date of the audit along
with the demographic characteristics of the GP, and more importantly, audit team
impressions about process performance since the last audit including a financial
misappropriations estimate. These impressions and estimates are based largely on the
second component of the audit report – the list of complaints filed during the
verification process by individuals, groups or by audit team members. We use data
from the first round of audits that began in 2006 and until 2010.10 We construct a
panel of audit reports for each GP with an average of over two reports per GP for the
period 2006-10.11
9 1/3rd of all village council seats are randomly reserved for a woman sarpanch in AP
and across all states in India.
10Original audit reports that were missing were supplemented with abridged versions
of the audit reports available from the state auditor‟s website:
http://125.17.121.162/SocialAudit/ 11 Information in the audit reports were coded as follows: each complaint was first
classified into labor, material or worksite facilities related. The former two were
further categorized by type. For each complaint we recorded whether any
misappropriated amount was mentioned; if yes, the amount was mentioned, otherwise
the information is missing.
In addition to the official audit data, a survey was conducted in all sampled
GPs in 2011-12 to collect information on GP and elected sarpanch characteristics.
Retrospective data on the elections to the village council held in July 2006 following
which new village council members, including the sarpanch, assumed office for a
five-year term, were gathered. Specifically, data were collected on the sarpanch
elections from up to four respondents in each GP – the winning candidate (elected
sarpanch), closest losing contestant in terms of proportion of total votes received, a
worker of the losing political party and the GP secretary. Information was obtained on
votes received by each contestant and their party affiliation. It is worth noting that the
timing of this election overlaps with the phasing-in of the NREGA in February, 2006
in AP, giving us the opportunity to study program implementation up to 2010 with the
characteristics of the village council and the sarpanch unchanged. Finally, GP level
characteristics on infrastructure and availability of public goods, such as schools,
were obtained from the village census abstract for 2001.
The summary statistics are described in Table 1. Panel 1 describes the village
level characteristics from the village level census abstract (2001). Panel 2 describes
the characteristics of the elected sarpanch – age, gender, education and caste. The
village or GP level characteristics in Panel 1 suggest that the villages in our sample
are moderately developed in terms of availability of public facilities and are
physically well-connected to an urban area. 28 per cent of the sampled villages belong
to the GP which is the headquarter of the mandal. 42.7 per cent of the sampled GPs
were reserved for a woman sarpanch in 2006. More than 67 percent of the GPs were
reserved on the basis of caste for the head of the village council in the 2006 sarpanch
elections.
In Panel 2, we present the individual characteristics of the elected sarpanch.
44.4 percent of the elected candidates belong to the Indian National Congress (INC)
while 35.7 were affiliated with the Telugu Desam Party (TDP).12 The remaining,
approximately 20 percent of candidates, were distributed among regional or
communist parties (viz. Telangana Rashtra Samithi, Communist Party of India
(Marxist)) or were independent candidates. Thus, the two main political parties during
the 2006 elections were INC and TDP. Almost 20 per cent of the winning candidates
had prior political experience either as a political party worker or in a position in the
panchayat. The average number of prior terms in a political office was less than 1.
The summary statistics on the retrospective sarpanch election data are in Panel 3
of Table 1. We report data obtained from interview with the elected sarpanch.13 The
number of contestants in the sarpanch election was a little under 3, on average. The
winning candidate received 20 per cent more votes, of total votes polled than her
closest contestant. The margin of victory is our measure of electoral competition in
the empirical analysis.
In Table 2 we show the summary statistics for the audit data. The total number
of audits conducted over the period 2006-10 in our sampled GPs was 711 or 2.37
audits per GP. The average number of registered irregularities was 5.823, the majority
of which were labor related (86.9 percent). Non-labor and non-materials related
12 Note that candidates‟ political affiliation is not formally declared to the State
Election Commission in the sarpanch elections. However, each candidate belongs to a
political party and this is common knowledge amongst the electorate.
13 The coefficient of correlation between the margin of victory reported by the elected
sarpanch and the other respondents varies between 0.95 and 0.97 and is significantly
correlated at 1 per cent significance level.
irregularities (program facilities on the project site) were insignificant and are not
included in the analysis. The labor related irregularities are primarily related to
payment of wages to beneficiaries – a private good that the electorate is likely to care
deeply about. The materials related irregularities consisted of expenditures on the
materials used in the NREGA projects, viz. whether the sanctioned project was
executed or not, quality of materials used etc.. These expenditures can be termed as
providing the public component of the program – one that voters are more likely to
free ride on.
B. Methodology
Our outcome of interest is the number of each type of irregularity registered across all
audits for each GP over the period 2006-10. Specifically, we run the following
where the number of irregularities in GP j in mandal k in district l in audit m at time t
(Irregularityjklmt) is a function of electoral completion (Competitionjkl,t-1) prior to any
audits and Xjkl as outlined in equation (1) above. In addition, there may exist secular
time trends (Yeart) and district specific time trends (Dl*Yeart) that affect the level of
corruption in a GP. Furthermore, we include audit and mandal fixed effects to account
for unobservables such as auditor‟s capacity to detect malfeasance which may
improve with successive audit rounds and the mandal bureaucracy‟s preferences.
Both empirical specifications are used to analyse data for up to three rounds of
audits in each GP between 2006 and 2010.
5. Results
We first assess the impact of political competition on program leakages in Table 3.
Our main outcomes of interest are – the total number of irregularities, total labour
related irregularities and total materials related irregularities registered during 2006-
10 in each GP. To ensure that our outcome variable is not influenced by the variation
in the number of audits (due to missing audit reports) across GPs in a mandal, we
drop mandals in which data are not available for the same audit rounds for all three
sampled GPs. We are then left with a sample of 257 GPs. In columns 1,3 and 5 we
model a linear relationship between electoral competition and reported irregualrities.
In coulmns 2,4 and 6 we introduce a polynomial term for electoral competition.
Table 3 shows that the coefficient on „electoral competition‟ is positive and
insignificant overall (coulmn 1) and for labor related irregularities (column 3) but
significant for material related irregularities as shown in column 5. When we
introduce a quadtratic term for electoral competition, our U-shaped hypothesis from
the theoretical model holds up as suggested by the negative coefficient on „electoral
competition‟ and the positive coefficient on „electoral competition2‟, albeit
insignificant in columns 2 and 4 . The direction of the coefficients indicates that
electoral competition at low levels reduces reported program irrgularities but as
electoral competition rises there is an increase in the number of irrelgularities. This
non-linear effect of electoral competition is again significant for materials component
of the program in column 6.
In Table 4 we conduct the analysis at the GP-audit level. In columns 1,3 and 5
we include only mandal fixed effects to make the model comparable with Table 3.
Columns 2, 4 and 6 show the results of specification 2 discussed above. Our results
are remarkably consistent with those in Table 3 – there is a significant non-linear, U-
shaped relationship between electoral competition and irregularities for the materials
component. The coefficients are not significantly different between the more
parsimonious model which includes only mandal fixed effects and stricter model
which accounts for trends and audit fixed effects as well across all outcomes. This
suggests that secular or district specific trends and audit level unobservables were not
correlated with electoral competition and did not play a significant role in uncovering
program related malfeasance over time. In the remainder of our analysis, therefore,
we continue present the results from specification 2.
In Tables 3 and 4 our outcome included all reported irregualrites. However,
irregularities registered by the auditors are less likely to suffer from noise due to
personal biases. Beneficiary households who report program irregularities, as part of
the bottom-up approach of the audit design, are likely to be subject to threats and
intimidation , particularly due to the public announcement of the audit findings. This
may affect the irregularity reporting behavior of GP residents. Hence to reduce the
noise in the data we re run the analysis for irregularities reported by the auditors
alone. These results, reported in Table 5, suggest that our previous findings are robust
to this concern.
In the survey we gauged incumbent‟s perception of voters‟ bias for or against
her by asking the incumbent to rank her chances of re-election in the forthcoming GP
elections.14The response of the incumbents to this hypothetical question correlates
14The survey question was “Please rank the chances of your being re-elected in the
significantly with the degree of political entrenchment of the sarpanch‟s family.
Political entrenchment is a function of the number of relatives of the incumbent who
have held political positions and the number of years they held those positions. An
incumbent‟s family is considered to be more politically entrenched the higher the
average number of years (total years in political office/number of relatives who have
held political positions) her relatives were in a political office. The correlation
between re-election expectations and political entrenchment is positive and significant
at 5 per cent level in our data.
Using this self-reported measure of voter bias, we stratify the sample into
electoral bias against (reported re-election probability moderate or less) and for
(reported re-election probability more than moderate) the incumbent and re-run
equation 2. Our theoretical model suggests that the effect of electoral competition
would be significantly non-linear when bias is in favor of the left leaning incumbent.
This shows up quite starkly in the analysis in Table 6. The U-shaped, non-linear
effect of electoral competition is significant in the lower panel of the table but mostly
flat in the upper panel, as predicted by the model.
Our results, so far, highlight the significant effect of electoral competition on
irregularities in the materials component of the NREGA and an absence of any overall
impact on labour related irregularities. However, findings reported in Table 6 suggest
that there is significant variation in the total irregularities by its components. In panel
next sarpanch elections in this Gram Panchayat on a scale of 0 to 5: (0) No chance of
re-election; (1) Very low; (2) Low; (3) Moderate; (4) High; (5) Almost certain to be
re-elected. The average rank (excluding 12 non-responses) was 3.83 and 3.69 in
unreserved and reserved GPs, respectively.
1 we report the relationship between electoral competition and types of irregularities
when electoral bias is against the incumbent politician. We find an insignificant effect
of electoral competition on disciplining politican behavior across all outcomes.
However, when we restrict the reported irregularities to those filed by auditors alone,
we find a significant U-shaped relationship between electoral competition and the
number of materials related irregularities. In contrast, in the lower panel, when the
electoral bias is in favor of the incumbent, we find a strong non-linear relationship
between total and labour related irregularities in coulmns 1 and 2 as well as when we
study the irregularites reported by auditors in columns 4 and 5. These results suggest
that the nature of corruption in public programs may vary depending on the preceived
electoral bias of an incumbent when audits are mandated and its findings are made
public. When the incumbent perceives that electoral bias is in her favor (which may
be due to pilitical entrenchment), there is significant theft from the private component
of the program – i.e., in wage expenditures. On the other hand, when re-election is
perceived to be more difficult, there is a significant effect of electoral competition in
the public component of the program – materials expenditures. This suggests that at
low levels of electoral competition incumbents pilfer from the private component of
the program even though voters care more about this aspect of the program benefits
because re-election probability is high inspite of public exposure of corruption. When
re-election probability is low, then incumbents are more likely to steal from the
component of the program that voters care less about – the public expenditures on
materials. Our results echo Ferraz and Finan (2011) but also nuance the impact of
mandated disclosure of fraud in public expenditures on the nature of corruption.
The findings outlined in Table 6 are held up when we break-up the labor and
materials related irregularities into three main components: non-payment or delay in
payment of wages, impersonations or ghost workers and bribes paid to receive wages;
and ghost projects, poor qulaity of materials and bribes for materials related
irregularities. Consistent with the previous table, electoral competition significantly
affects the number of reported ghost projects, an irregularity in the public good
component of the program, when electoral bias is against the incumbent. Irregularities
in the private component of the program (columns 1 and 3) show up along with those
in the public component (column 5) when electoral bias is in favor of the incumbent
in the lower panel of Table 7.
The audit reports also provide information on the discrepancy in program
expenditures, in rupee amount, between reported and actual expenditures for an
irregularity as discussed above. However, this information is missing in several
instances. For those irregularities for which this information is available we calculated
the rupee amount per irregularity by the type of irregularity. Conditional on the data
being available, we find that the amount of potential pilferage per material related
irregularity is almost three times higher than a labor related iregularity (Afridi and
Iversen, 2013). This might explain the larger magnitude of the point estimates on
electoral competition for labor relative to material related malpractices in the lower
panel. The number of irregularities in the labor component has to be of comparable
value to theft in the materials component when the electoral bias is in favor of the
incumbent.15
15 we restrict the data to those mandals (GPs) which had conducted 2 audits over the
period 2006-10 to account for variation in the intensity of audits which may have
been systematically related to existing levels of corruption. Our results are
qualitatively unchanged.
6. Conclusions
In this paper we build a simple game theoretic model to capture the effect of electoral
competition on re-election concerns when there is public exposure of corruption
through mandated audits of government expenditures. We show that in a scenario
where the politician acts as the agent of the principal, the party, corruption has a non-
monotonic relationship with electoral competition. At low levels of electoral
competition the party‟s platform on corruption is high and the agent adheres to it. As
competition increases, the party lowers its threshold level of corruption which is
followed by the incumbent. However, when re-election is extremely fragile (high
competition) then although the party lowers the threshold level of acceptable
corruption, the incumbent deviates from the party‟s dictum and actual corruption is
high.
We use the model‟s predictions to test our hypotheses using official data on
mandated audits of the NREGA projects implemented by village councils in Andhra
Pradesh during 2006-10 and data on the elections to the headship of these same
village councils in 2006. Our results largely confirm the non-linear relationship
between electoral competition and corruption, but also suggest that the impact of
electoral competition varies by whether theft is from the public or private component
of a good.
Our findings suggest that mandated exposure of corruption may not always
lead to lower theft from public goods. This relationship is mediated by the extent of
electoral competition, and hence re-election incentives faced by an incumbent.
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Table 1: Summary statistics
Notes: Election characteristics as reported by the elected sarpanch of the GP; proportion of votes received includes unanimous candidates; proportion of votes polled is 0 if the sarpanch election was unanimous.
Variable No. of GPs
Mean Standard Deviation
Min. Max.
GP characteristics Cultivated area (sq. km) 294 1643.24 1697.202 12 16578 Proportion of irrigated area 294 0.242 0.233 0 0.999 Population density (per sq. km) 296 3.431 3.726 0 39.306 Distance from town(km) 296 30.371 20.158 0 125 Medical facility available 294 0.829 0 .376 0 1 Communication facility available 294 0.918 0.274 0 1 Banking facility available 294 0.374 0.484 0 1 Middle school 296 0.709 0.454 0 1 Sarpanch election No. of contestants 299 2.916 1.767 1 16 Proportions of votes polled out of total voters
Table 2: Audit summary statistics Variable Number of
audits Mean Std. Dev. Min. Max.
All Complaints 711 5.823 5.299 0 43 Labour Complaints 711 5.062 4.594 0 30 Material Complaints 711 0.684 1.520 0 18 Other Complaints 711 0.077 0.307 0 3 Note: Data at GP-audit level for the period 2006-10. „Other complaints‟ refer to complaints related to facilities provided at the NREGA worksite.
Table 3: GP level sam
ple (mandal fixed effects)
A
ll irregularities Labor related irregularities
Material related
irregularities
(1) (2)
(3) (4)
(5) (6)
Electoral competition
5.254 -19.12
2.526 -4.683
2.973* -13.26*
(5.383) (35.73)
(4.750) (33.74)
(1.709) (7.384)
Electoral competition
2
16.07
4.752
10.70**
(23.64)
(21.90)
(5.223) N
257
257 257
257 257
257 R
2 0.720
0.610 0.601
0.724 0.724
0.610 N
ote: Each observation is the sum of the num
ber of irregularities reported during 2006-10 at the GP level. Standard errors in parentheses.
*significant at 10%, ** 5%
and ***1%.
Table 4: Pooled sample of all audits, by G
P-audit
A
ll Labor
Material
(1)
(2) (3)
(4) (5)
(6) Electoral com
petition -4.597
-4.662 2.008
1.95 -6.167**
-6.187** (12.55)
(12.800) (11.91)
(12.130) (2.687)
(2.758) Electoral com
petition2
4.070 4.052
-0.851 -0.865
4.676** 4.680**
(8.143) (8.304)
(7.596) (7.742)
(1.853) (1.897)
Mandal FE
√
√ √
√ √
√ Y
ear FE
√
√
√ A
udit FE
√
√
√ D
istrict x Year FE
√
√
√
N
677 677
677 677
677 677
R2
0.361
0.430 0.244
0.459 0.395
0.291
Note: Each observation is the num
ber of irregularities reported at the GP level in each audit over 2006-10. Standard errors clustered at the G
P level in parentheses. *significant at 10%
, ** 5% and ***1%
.
Table 5: Pooled sample of all audits, by G
P-audit (irregularities filed by auditors only)
A
ll Labor
Material
(1)
(2) (3)
Electoral competition
-1.625 -4.088
-6.048** (11.82)
(2.896) (2.945)
Electoral competition
2 0.0456
2.548 4.615**
(7.801) (1.857)
(2.032) M
andal FE
√ √
√ Y
ear FE √
√ √
Audit FE
√ √
√ D
istrict x Year FE
√ √
√ N
635
635 635
R2
0.421 0.323
0.291 N
ote: Each observation is the sum of the num
ber of irregularities reported by auditors during 2006-10 at the GP level.
Standard errors clustered at the GP level in parentheses. *significant at 10%
, ** 5% and ***1%
.
Table 6: Pooled sample of all audits, by G
P-audit
Irregularities filed by all
Irregularities filed by auditors
All
Labor M
aterial A
ll Labor
Material
(1)
(2) (3)
(4) (5)
(6) Electoral bias against incum
bent
Electoral C
ompetition
0.093 12.920
-11.600 -5.450
3.002 -13.32*
(24.05)
(18.84) (8.002)
(25.730) (5.231)
(7.721) Electoral C
ompetition
2 -2.048
-9.901 7.274
1.325 -1.672
8.225*
(14.960) (11.800)
(5.056) (15.830)
(3.320) (4.861)
R2
0.537 0.392
0.59 0.527
0.392 0.428
N
387 387
387 363
363 363
Electoral bias in favor of incumbent
Electoral Com
petition -105.6**
-113.1*** 7.519
-110.8** -35.64***
6.705
(44.250) (35.010)
-11.92 (46.79)
(8.743) (11.32)
Electoral Com
petition2
66.36** 68.60***
-2.535 73.03**
20.89*** -1.626
(26.600)
(21.130) -7.083
(28.03) (5.262)
(6.806) R
2 0.646
0.434 0.678
0.654 0.442
0.582 N
266
266 266
250 250
250 N
ote: Each observation is the sum of the num
ber of irregularities reported by auditors during 2006-10 at the GP level.
Standard errors clustered at the GP level in parentheses. *significant at 10%
, ** 5% and ***1%
.
Table 7: Pooled sample of all audits, by G
P-audit (irregularities filed by all)
Labor related irregularities
Materials related irregularities
N
on-provision,
nonpayment
of wages
Impersonations/
Ghost w
orkers
Bribes
Ghost
projects Poor quality
Bribes
(1)
(2) (3)
(4) (5)
(6) Electoral bias against incum
bent
Electoral C
ompetition
1.288 -1.714
1.737 -9.941**
0.314 -2.991
(7.322)
(12.010) (4.887)
(4.028) (1.486)
(4.004) Electoral C
ompetition
2 -1.343
-1.033 -0.658
6.152** -0.282
2.146
(4.513) (7.859)
(3.068) (2.568)
(0.965) (2.602)
R2
0.708 0.457
0.395 0.322
0.361 0.398
N
387 387
387 387
387 387
Electoral bias in favor of incumbent
Electoral Com
petition -45.11***
-25.13 -26.42***
4.04 -11.18***
11.64
(10.700) (20.250)
(9.687) (3.386)
(2.603) (7.976)
Electoral Com
petition2
27.24*** 15.7
15.18** -2.531
6.429*** -4.35
(6.668)
(12.200) (5.981)
(2.044) (1.510)
(4.733) R
2 0.659
0.583 0.53
0.487 0.474
0.356 N
266
266 266
266 266
266 N
ote: Each observation is the sum of the num
ber of irregularities reported by auditors during 2006-10 at the GP level.
Standard errors clustered at the GP level in parentheses. *significant at 10%
, ** 5% and ***1%
.
Appendix
Lemma 1 The probability P
L
(xL
, x
R
) is given by
P
L
(xL
, x
R
) =
8>><
>>:
1 " x
R
� x
L
� 4�,xR�xL�4�+"
2" �" x
R
� x
L
� 4� ",
0 x
R
� x
L
� 4� �".
(1)
Proof. As mentioned above, party L wins if xL
+ ⇠ x
R
+ (� � 1)2. It follows that
P(party L wins) = P(xL
+ (� + 1)2 + ⇠ x
R
+ (� � 1)2) (2)
= P(⇠ x
R
� x
L
� 4�), (3)
= P(⇠ x
R
� x
L
� �
0). (4)
Lemma 2 If there is full discipline among candidates then the equilibrium corruption levels
x
⇤L
and x
⇤R
, and the probability that in equilibrium party L wins elections are given by the
following table:
• If �� � 12" and �� � 1+"
4 , then x
⇤L
= 1, x⇤R
= 0, and P
L
(x⇤L
, y
⇤L
) = 1.
• If �� � 34" and �� 2�"
4 , then x
⇤L
= �4�+"
2 , x
⇤R
= 0, and P
L
(x⇤L
, y
⇤L
) = "�4�4" .
• If �� � 3(1�")4 , �� � "�1
4 , and �� 1+"
4 , then x
⇤L
= 1, x
⇤R
= 1+4�+"
2 , and
P
L
(x⇤L
, y
⇤L
) = �4��1+3"4" .
• If �� 34" and �� � 3
4(1 � "), then x
⇤L
= " � 4�3 , x
⇤R
= " + 4�3 , and P
L
(x⇤L
, y
⇤L
) =�4�+3"
6" .
• If �� "�14 then x
⇤L
= x
⇤R
= p
L
(x⇤L
, x
⇤R
) = 1.
1
��
0 = 3(1� ✏)
��
0 = 1 + ✏
��
0 = 3✏
��
0
✏
x
⇤L = ✏� �0
3
x
⇤R = ✏+ �0
3
PL = ��0+3✏6✏
x
⇤L = ��
0 � ✏
x
⇤R = 0
PL = 1
x
⇤L = 1
x
⇤R = 1+�0+✏
2
PL = �1��0+3✏4✏
x
⇤L = 1
x
⇤R = 0
PL = 1
��
0 = ✏� 1
x
⇤L = 1
x
⇤R = 1
PL = ��+✏2✏
0 10
2
Region A
Region B
Region C
Region D
Region E
Figure 1: Corruption levels and probability of winning.
Proof. We will calculate the equilibrium in the decision problem of the parties, denoted
(x⇤L
, x
⇤R
). The expected payo↵ of the parties is:
u
L
(xL
, x
R
) = x
L
p
L
(xL
, x
R
), (5)
u
R
(xL
, x
R
) = x
R
(1� p
L
(xL
, x
R
)). (6)
Since ⇠ has a uniform distribution, and in particular, its distribution has a density, the
functions u
L
and u
R
are di↵erentiable. We will first look for an equilibrium in an interior
point, xL
, x
R
2 (0, 1). To this end we di↵erentiate the functions uL
and u
R
of the last case.
@u
L
@x
L
(xL
, x
R
) =x
R
� 2xL
� � + "
2", (7)
@u
R
@x
R
(xL
, x
R
) ="+ x
L
� 2xR
+ �
2". (8)
2
The first order conditions are:
@u
L
@x
L
(xL
, x
R
) = 0 () x
R
= 2xL
+ � � ", (9)
@u
R
@x
R
(xL
, x
R
) = 0 () x
R
= xL+�+"
2 . (10)
The two derivatives vanish at
bxL
= "� �
3 , bxR
= "+ �
3 . (11)
Since � is negative, to ensure that (x⇤L
, x
⇤R
) is an interior point we need to ensure that
bxL
1 and bxR
� 0, which amounts to �� 3(1� ") and �� 3". Denote
RD
= {(�, ") : � � 3(1� "),�� 3"}.
On RD
we have x
⇤L
= "� �
3 , x⇤R
= "+ �
3 , and by Lemma 1 we have P
L
(x⇤L
, x
⇤R
) = ��+3"6" .
If 0 � "+ �
3 or "� �
3 � 1, then the solution will be on the boundary of the unit square
[0, 1]2.
If �� � 3" then we have x
⇤R
= 0. We identify when x
⇤L
is an interior point. By (12) we
deduce that in this case x
⇤L
= ��+"
2 . Since � is negative, we need to verify that x
⇤L
1,
which solves to �� 2� ". Denote
RB
= {(�, ") : � � 3(1� "),�� � 3",�� 2� "}.
On this region we have x
⇤L
= ��+"
2 , x⇤R
= 0, and by Lemma 1 p
L
(x⇤L
, x
⇤R
) = "��
4" .
If �� � 3(1�") then we have x⇤L
= 1. We first identify when x
⇤R
is an interior point. By
(13) this happens when x
⇤R
= 1+�+"
2 . We need to ensure that 0 x
⇤R
1. The condition
x
⇤R
� 0 is equivalent to �� 1 + ", and the condition x