Pedro Dal Bó

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While there is an extensive literature on the theory of in...nitely repeated games, empirical evidence on how “the shadow of the future” a¤ects behavior is scarce and inconclusive. We simulate in...nitely repeated prisoner’s dilemma games in the lab by having a random continuation rule. The experimental design represents an improvement over the existing(More)
A novel experiment is used to show that the effect of a policy on the level of cooperation is greater when it is chosen democratically by the subjects than when it is exogenously imposed. In contrast to the previous literature, our experimental design allows us to control for selection effects (e.g. those who choose the policy may be affected differently by(More)
We study the emergence of norms of cooperation in experimental economies populated by strangers interacting indefinitely. Can these economies achieve full efficiency even without formal enforcement institutions? Which institutions for monitoring and enforcement facilitate cooperation? Finally, what classes of strategies do subjects employ? We find that,(More)
We analyze a simple stochastic environment in which policy makers can be threatened by “nasty” interest groups. In the absence of these groups, the policy maker’s desire for reelection guarantees that good policies are implemented for every realization of the shock. When pressure groups can harass the policy maker, good policies will be chosen for only a(More)
We study political dynasties in the United States Congress since its inception in 1789. We document historic and geographic patterns in the evolution and pro…le of political dynasties, and analyze the connection between political dynasties and political competition. We also study the self-perpetuation of political elites. We …nd that legislators who enjoy(More)
This paper argues that low-stakes test scores, available in surveys, may be partially determined by test-taking motivation, which is associated with personality traits but not with cognitive ability. Therefore, such test score distributions may not be informative regarding cognitive ability distributions. Moreover, correlations, found in survey data,(More)
When collusive agreements are illegal, oligopolies must rely on the threat of future price wars to sustain collusion. If firms’ objective is to maximize the present value of profits, the shadow of that threat changes with the interest rate. That is, the interest rate determines how much firms discount the future, and this affects the level of collusion that(More)
There have been major advances in the theoretical study of the determinants of cooperation with many applications in economics and the social sciences. A growing experimental literature has studied the determinants of cooperation, tested different predictions of the theory, and suggested an empirical solution to the problem of multiple equilibria in(More)
We analyze how economy-wide forces (i.e.shocks to terms of trade, technology and endowments) affect the intensity of social conflict. We see conflict phenomena such as crime and civil war as involving resource appropriation activities. We show that not all shocks that could make society richer will reduce conflict. Positive shocks to labor intensive(More)