Hold your nose and vote: corruption and public decisions in a representative democracy

摘要

This paper analyzes how corruption alters policy decisions in democracy, and examines whether this distortion can result in a long-term persistence of corruption even when the voters are well informed and rational. By applying a citizen-candidate model of representative democracy, the paper analyzes how corruption distorts the allocation of resources between public and private consumption, altering the policy preferences of elected and nonelected citizens in opposite directions. The outcome is a reduction in real public expenditure and, if the median voter's demand for public goods is sufficiently elastic, a reduction in taxes. In this case, some citizens benefit indirectly from corruption. The paper also presents some empirical evidence that, in democratic countries, corruption results in lower tax revenue, and proceeds to show that, when this occurs, citizens anticipating a shift in preferences in favor of public expenditure may support institutions that favor corruption. This result complements the findings of other studies that have attributed the persistence of corruption in democracy to some failure on the part of the voters or the electoral system. It also bears implications for developing effective anticorruption strategies and for redefining the role that can be played by the international community.