-person gift-exchange experiment we find causal evidence for peer effects in voluntary cooperation: agents' efforts are positively …

update their beliefs about the probability of being audited, both before and after audits are definitely withdrawn. We find … that when individuals have initially experienced systematic audits, they decrease both their beliefs and their … irregular, they maintain high beliefs about the probability of being audited and continue cooperating long after audits have …

Research on public goods mainly focuses its attention on the ability of incentives, beliefs and group structure to … concept of cooperation and explore the extent to which this intervention brings about changes in peopleﾒs voluntary … contributions to the public good and self-reported emotional responses. Our findings suggest that priming cooperation increases …

Explaining the evolution and maintenance of cooperation among unrelated individuals is one of the fundamental problems … mechanism to maintain cooperation among humans. In this paper we explore the boundary conditions for altruistic punishment to … maintain cooperation by systematically varying the cost and impact of punishment, using a subject pool which extends beyond the …

differences in beliefs about others contributions. By and large, this indicates the importance of conditional cooperation …This paper experimentally examines how religious festivals and the degree of religiosity affect cooperation and … altruistic punishment by using public goods experiments. We conducted the experiments in Turkey at different points in time; one …

This paper introduces new experimental designs to enrich understanding of conditional cooperation and punishment in … method. It is found that the selfish bias in conditional cooperation is made significantly worse when other players …

We investigate whether there is a link between conditional cooperation and betrayal aversion. We use a public goods …

Development of human societies requires cooperation among unrelated individuals and obedience to social norms. Although … punishment is widely agreed to be potentially useful in fostering cooperation, many recent results in psychology and economics … promoting social norms. We show here, using experiments with human subjects, that public implementation of punishment can …

We test if cooperation is promoted by rank-order competition between groups in which all groups can be ranked first, i … are absent if groups perform at the same level and it therefore does not eliminate low-cooperation equilibria. We find … that all-can-win competition produces a universal increase in cooperation and benefits a majority of individuals if …

paper, we conduct laboratory experiments in which we explore the motivations for and the effects of group identity. We find …