We provide a direct test of the role of social preferences in voluntary cooperation. We elicit individuals' cooperation preference in one experiment and make a point prediction about the contribution to a repeated public good. This allows for a novel test as to whether there are "types" of...

This paper provides strong evidence challenging the self-interest assumption that dominates the behavioral sciences and much evolutionary thinking. The evidence indicates that many people have a tendency to voluntarily cooperate, if treated fairly, and to punish non-cooperators. We call this...

We provide a direct test of the role of social preferences in voluntary cooperation. We elicit individuals’ cooperation preference in one experiment and make a point prediction about the contribution to a repeated public good. This allows for a novel test as to whether there are "types" of...

We compare the strategy method and the direct response method in public good experiments in a within-subject design. This comparison is interesting because the strategy method is frequently used to investigate preference heterogeneity. We find that people identified by the strategy method as...

We provide a direct test of the role of social preferences and beliefs in voluntary cooperation and its decline. We elicit individuals cooperation preference in one experiment and use them as well as subjects elicited beliefs to make predictions about contributions to a public good played...

We study the effects of random assignment to coeducational and single-sex classes on the academic performance of female high school students. Our estimation results show that single-sex schooling improves the performance of female students in mathematics. This positive effect increases if the...

We provide a test of the role of social preferences and beliefs in voluntary cooperation and its decline. We elicit individuals’ cooperation preferences in one experiment and use them – as well as subjects’ elicited beliefs – to explain contributions to a public good played repeatedly....

Typically, laboratory experiments suffer from homogeneous subject pools and selfselection biases. The usefulness of survey data is limited by measurement error and by the questionability of their behavioral relevance. Here we present a method integrating interactive experiments and...

This paper investigates the driving forces behind informal sanctions in cooperation games and the extent to which theories of fairness and reciprocity capture these forces. We find that cooperators' punishment is almost exclusively targeted towards the defectors but the latter also impose a...