Staff rotation as an anti-corruption policy: an experimental study

Within the German federal government regular staff rotation is a precautionary measure against corruption in public administration. To study the effect of this policy, an experiment was conducted where pairs of potential bribers and public officials were randomly re-matched in every round. The outcome is compared to the case where the identity of the pairs interacting remained fixed. The conclusion is that rotation of interacting pairs significantly reduces the levels of bribes as well as the frequency of inefficient decisions due to bribery.     

Nash equilibrium when players account for the complexity of their forecasts

Nash equilibrium is often interpreted as a steady state in which each player holds the correct expectations about the other players' behavior and acts rationally. This paper investigates the robustness of this interpretation when there are small costs associated with complicated forecasts. The model consists of a two-person strategic game in which each player chooses a finite machine to implement a strategy in an infinitely repeated 2×2 game with discounting. I analyze the model using a solution concept called Nash Equilibrium with Stable Forecasts (ESF). My main results concern the structure of equilibrium machine pairs. They provide necessary and sufficient conditions on the form of equilibrium strategies and plays. In contrast to the “folk theorem,” these structural properties place severe restrictions on the set of equilibrium paths and payoffs. For example, only sequences of the one-shot Nash equilibrium can be generated by any ESF of the repeated game of chicken.     

Reputation with observed actions

Summary A single long-run player plays a fixed stage game (simultaneous orsequential move) against an infinite sequence of short-run opponents that play only once but can observe all past realized actions. Assuming that the probability distributions over types of long and short-run players have full support, we show that the long-run player can always establish a reputation for theStackelberg strategy and is therefore guaranteed almost his Stackelberg payoff in all Nash equilibria of the repeated game.The financial support of the National Science Foundation, Grant SES 90-7999, and of Consiglio Nazionale delle Ricerche is gratefully acknowledged. I wish to thank David Levine, Wolfgang Pesendorfer and Seminar Participants at UCLA, Universidad Carlos III de Madrid and University of Naples for useful discussions and suggestions.     

The interaction effect of economic freedom and democracy on corruption: A panel cross-country analysis

This paper examines the effects of economic freedom, democracy and its interaction term on controlling corruption. Interactive results indicate that economic freedom and democracy significantly combat corruption. Economic freedom reduces corruption in any political environment. Democracy increases corruption when economic liberalization is low.     

Harassment, corruption and tax policy: reply

Saha [Eur. J. Polit. Econ. (2003)] has raised some points about our paper [Eur. J. Polit. Econ. 16 (2000) 75]. We herewith reply to these points.     

A controlled field experiment on corruption

This paper reports on a controlled field experiment on corruption designed to address two important issues: the experimenter's scrutiny and the unobservability of corruption. In the experiment, a grader is offered a bribe along with a demand for a better grade. We find that graders respond more favorably to bigger bribes, while the effect of higher wages is ambiguous: it lowers the bribe's acceptance, but it fosters reciprocation. Monitoring and punishment can deter corruption, but we cannot reject that it may also crowd-out intrinsic motivations for honesty when intensified. Finally, our results suggest several micro-determinants of corruption including age, ability, religiosity, but not gender.     

腐败对外国直接投资影响的实证分析

本文依据世界106个国家的截面数据．分析了腐败对外国直接投资（FDI）的影响。研究结果表明，腐败与FDI之间存在显著的负相关。但是，腐败对FDI的负面影响可以在一定程度上被诸如东道国经济开放和政治稳定等积极因素所抵消。     

A learning-based model of repeated games with incomplete information

This paper tests a learning-based model of strategic teaching in repeated games with incomplete information. The repeated game has a long-run player whose type is unknown to a group of short-run players. The proposed model assumes a fraction of ‘short-run’ players follow a one-parameter learning model (self-tuning EWA). In addition, some ‘long-run’ players are myopic while others are sophisticated and rationally anticipate how short-run players adjust their actions over time and “teach” the short-run players to maximize their long-run payoffs. All players optimize noisily. The proposed model nests an agent-based quantal-response equilibrium (AQRE) and the standard equilibrium models as special cases. Using data from 28 experimental sessions of trust and entry repeated games, including 8 previously unpublished sessions, the model fits substantially better than chance and much better than standard equilibrium models. Estimates show that most of the long-run players are sophisticated, and short-run players become more sophisticated with experience.     

Natural resources, democracy and corruption

We study how natural resources can feed corruption and how this effect depends on the quality of the democratic institutions. Our game-theoretic model predicts that resource rents lead to an increase in corruption if the quality of the democratic institutions is relatively poor, but not otherwise. We use panel data covering the period 1980-2004 and 124 countries to test this theoretical prediction. Our estimates confirm that the relationship between resource rents and corruption depends on the quality of the democratic institutions. Our main results hold when we control for the effects of income, time varying common shocks, regional fixed effects and various additional covariates. They are also robust across different samples, and to the use of various alternative measures of natural resources, democracy and corruption.     

Quantifying corruption by a human capital earnings equation

This paper uses a human capital earnings equation to quantify administrative corruption in the public sector. Regression analyses are conducted based on information from surveys administered to public officials in Albania. After accounting for officials’ characteristics, e.g., schooling, experience, gender, type of agency, and public and private sectors’ features, we deduce that the administrative corruption was on average 2.6× the officials’ current salary in Albania, which is equivalent to 16.7% of the country’s GDP.

The impact of liberalization on bureaucratic corruption

Liberalization increases the number of goods available for consumption within a country. Since bureaucrats value variety, this raises the marginal utility of accepting a bribe. This “benefit effect” is counteracted by an increasing “cost effect” from corruption deterrence activities that arise due to greater international pressure to curb corruption. The interaction of these two effects can lead to a non-monotonic relation between liberalization and corruption. Moreover, pre-commitment to deterrence activities is shown to be more effective in controlling corruption. Empirical evidence supports the existence of a non-monotonic relation between economic openness and corruption among developing countries.     

Remittances as a social status signaling device

Like all human beings, migrants may have a concern about their prestige or social status in the eyes of left-home family and friends. They can remit money in order to signal their economic success and increase their status. We show that if migrants’ income is private information, unsuccessful migrants might accept a worsening of their living conditions and send back home large amounts of remittances only in order to make residents believe that they are successful. In some cases, successful migrants can signal their true favorable economic situation by remitting an even larger amount. The game presents various equilibria that differ with respect to the proportion and nature of the migrants who sacrifice consumption opportunities to status revealing actions.     

Socio-economic typologies of bureaucratic corruption and implications

Corruption all over the world is an ancient, but it seems very topical too, concern in politics and in the media. This paper investigates spatial and dynamic aspects of corruption using cellular automata. Although cellular automata are very simple, deterministic machines and thus crude approximations of real, economic situations, they are capable of describing self organization and complex patterns (of corruption). It is shown that neither social pressure nor pure economic incentives allow for complex patterns, although social pressure may lead to clusters of corrupt and uncorrupt segments within a bureaucracy. However, blending both above characteristics is capable explaining complex behavior. Extending the concept of cellular automata through mixing rules – across space (= bureaucrats) and time (accounting for global effects) – does not affect the fundamental properties.     

The effect of corruption on capital accumulation

This paper examines the effect of corruption in infrastructure development as well as in capital and labor markets, on capital accumulation and output in an overlapping generations model. Corruption affects income redistribution, government expenditures on infrastructure, firms’ incentive to invest, and workers’ incentive to supply labor. An increase in corruption in infrastructure development decreases capital accumulation and output if the decrease in the savings of ordinary workers is sufficiently large. An increase in corruption in the capital market decreases capital accumulation and output. An increase in corruption in labor market decreases capital accumulation and output when labor supply is completely inelastic. Simulation results based on plausible parameter values indicate that an increase in corruption in the labor market will also reduce labor supply, capital accumulation and output.      

The supply of education quality in a spatial model with asymmetric moving costs

The paper analyses the characteristics of the supply of higher education in different geographical macroareas using a strategic interaction framework. It focuses on universities operating in centralised funding system that autonomously set the quality of education showing that in equilibrium it is inversely related to students’ moving costs across areas. We show that in the presence of asymmetric information about workers’ ability and asymmetric costs of moving, the only PBE consistent with forward induction involves that only high ability workers acquire education and the quality of education is lower in macroareas where the moving costs are higher. Our model predicts that in economies with centralised university funding, educational policies must be regulated according to the specific socioeconomic characteristics of the area. Direct subsidies to universities may be ineffective in improving the quality of education in the less developed areas. When regional disparities are not too big, efficiency gains may be obtained by reducing moving costs.     

Common political culture: Evidence on regional corruption contagion

Although there are indications of common regional corruption characteristics, empirical studies of corruption have assumed that influences on corruption are country-specific. In this paper we report evidence based on a cross-section of 123 economies confirming that, with few specific exceptions, corruption is a regional phenomenon. Institutional change that reduces corruption in one country affects, therefore, neighboring countries.     

Existence of nontrivial equilibria in repeated games with imperfect private monitoring

We consider finitely repeated games with imperfect private monitoring, and provide several sufficient conditions for such a game to have an equilibrium whose outcome is different from repetition of Nash equilibria of the stage game. Surprisingly, the conditions are consistent with uniqueness of the stage game equilibrium. A class of repeated chicken is shown to satisfy the condition.     

Crime and corruption in transitional economies: lessons for Cuba

Trends in aggregate crime rates across Europe reveal significant increases in crime in transitional countries. We identify causal mechanisms associated with the economic transition. Historical experience of corruption in the Soviet Union is reviewed, and connections between corruption and transition are analyzed. We apply the results to Cuba's current circumstances, examining the potential for growth in crime and corruption in Cuba and suggesting policies to ameliorate it.