We experimentally investigate how different information about others’ individual contributions affects conditional cooperators’ willingness to cooperate in a one-shot linear public goods game. We find that when information about individual contributions is provided, contributions are...

Understanding the motivations behind people’s voluntary contributions to public goods is crucial for the broader issues of economic and social development. By using the experimental design of Fischbacher, Gächter, and Fehr (2001), we investigate the distribution of contribution types in two...

This paper investigates whether altruistic punishment when cooperation norms are violated is sensitive to gender effects. Our framework is a one-shot social dilemma game with third-party punishment in which subjects are informed of the others' gender within their group. This allows us to test...

We test a mechanism whereby groups are formed voluntarily, through the use of voting. These groups play a public-goods game, where efficiency increases with group size (up to a limit, in one treatment). It is feasible to exclude group members, to exit one's group, or to form larger groups...

Studies have shown that there are differences in cooperative behavior across countries. Furthermore, differences in the use and the reaction on the introduction of a norm enforcement mechanism have been documented in cross-cultural studies, recently. We present data which prove that stark...

Kocher et al. (2008) find that conditional willingness to contribute to a public good is considerably stronger at a U.S. research site, Appalachian State University, than at sites in Europe and Asia. I find that the willingness at Brown University, in Rhode Island, is not significantly different...

We introduce new treatments of a voluntary contribution mechanism with opportunities to punish in order to see how contributions, punishments and earnings change when punishment is in the form of fines the punisher distributes to other members of her group. The linked punishment-reward set up is...

This paper compares two methods to encourage socially optimal provision of a public good. We compare the efficacy of vigilante justice, as represented by peer-to-peer punishment, to delegated policing, as represented by the “hired gun” mechanism, to deter free riding and improve group...