We analyse interethnic cooperation in an infinitely repeated prisoner’s dilemma when members of one group are unable to target punishment towards individual defectors from the other group. We first show that indiscriminate punishment may sustain cooperation in this setting. Our main result,...

The paper shows that being able to forecast another player's actual cooperation better than pure chance can change players' strategic incentives in a one-shot simultaneous PD-situation. In particular, it is shown that if both players have such ability (to forecast each others' actual choices...

I present and study an evolutionary model of immigration and culturaltransmission of social norms in a set-up where agents are repeatedly matchedto play a one-shot interaction prisoner´s dilemma. Matching can be non-randomdue to limited integration (or population viscosity). The latter refers...

We test the assumption that preferences are unchanged throughout a strategic game in the absence of feedback. To do so, we study the relationship between the strategic nature of a game and players' identification in social groups. We present evidence that the strategic nature of the game affects...

We present a simple model of voluntary groups in a collective action problem where individuals differ in their willingness to cooperate. The heterogeneity of individuals' preferences generally yields multiple equilibrium groups with different levels of cooperation. Voluntary participation in a...

This paper aims to identify the effect of political exclusion on social capital in Colombia, suggesting social capital as an important channel through which political inequality has been central for Colombian economic development. I use the Colombian National Front agreement during 1958-1974 to...

We analyze how corruption affects incentives to invest or contribute to public goods. We obtain a proxy for corruption among Liberian community leaders by keeping track of a flow of inputs associated with a development intervention, measuring these inputs before and after giving them in custody...

The paper aims at studying determinants of schooling in traditional hierarchical societies confronted with an established history of outmigration. In the village, a ruling caste controls local political and religious institutions. For children who do not belong to the ruling caste, migration is...

Lending to the poor is expensive due to high screening, monitoring, and enforcement costs. Group lending advocates believe lenders overcome this by harnessing social connections. Using data from FINCA-Peru, I exploit a quasirandom group formation process to find evidence of peers successfully...

This paper o¤ers a bridge between the theoretical literature on endogenous network formation and the empirical work on the impact of social networks on economic performance. We provide a theoretical framework of endogenous network formation that yields testable predictions for the network...