Previous experiments on public goods dilemmas have found that the opportunity to punish leads to higher contributions and reduces the free rider problem; however, a substantial amount of punishment is targeted on high contributors. In the experiment reported here, subjects are given the...

Research on economic growth suggests that the era of colonization has had an impact on the levels of economic development of countries around the globe. However, why some countries were colonized early, some late, and others not at all, and what effect these differences have had on current...

Research on economic growth suggests that the era of colonization has had an impact on the levels of economic development of countries around the globe. However, why some countries were colonized early, some late, and others not at all, and what effect these differences have had on current...

Research on economic growth suggests that the era of colonization has had an impact on the levels of economic development of countries around the globe. However, why some countries were colonized early, some late, and others not at all, and what effect these differences have had on current...

We study the. Incentive effects of endogenous group formation in a voluntary contributon experiment. Subjects are given information on the past contributions of others and allowed to express a preference for partners. On the basis of the stated preferences new groups are formed. We find that the...

In a public goods experiment with the opportunity to vote to expel members of a group, we found that contributions rose to nearly 100% of endowments with significantly higher efficiency compared with a noexpulsion baseline. Expulsions were strictly of the lowest contributors, and there was an...

We compare two devices previously found to increase contributions to public goods in laboratory experiments: communication, and punishment (allowing subjects to engage in costly reductions of one another’s earnings after learning of their contribution decisions). We find that communication...

We compare two devices previously found to increase contributions to public goods in laboratory experiments: communication, and punishment (allowing subjects to engage in costly reductions of one another’s earnings after learning of their contribution decisions). We find that communication...