Several studies have shown that dictator-game giving declines substantially if the dictator can exploit situational "excuses" for not being generous. In this experimental study we investigate if this result extends to more natural social interactions involving reciprocal behavior. We provide the...

Exploiting a novel geo-referenced data set of population diversity across ethnic groups, this research advances the hypothesis and empirically establishes that variation in population diversity across human societies, as determined in the course of the exodus of humans from Africa tens of...

There is little consensus on whether women are more generous than men; some research results indicate a higher propensity towards giving of female dictators, whilst others suggest the opposite. Two explanations have been put forward. According to the first one, women are more generous than men...

We develop a theory of endogenous regimes transitions (with a focus on democratic consolidation), which emphasizes the role of political culture and of its interaction with political institutions. Political culture reflects the extent of individual commitment across citizens to defend democracy...

We develop a model of job search and use it to assess the effects that the Brazilian unemployment benefit system has on exit rates from unemployment. In our setup, unemployed workers receive job offers from the formal and informal sectors and decide whether to accept them or wait. Only jobs in...

The concept of equality of opportunity (EOp) goes back to Roemer (1993, 1998) who argues that a society shall guarantee its members equal access to advantage regardless of their circumstances, while holding them responsible for turning that access into actual advantage by the application of...