A growing experimental literature studies the endogenous choice of institutions to solve
cooperation problems arising in prisoners' dilemmas, public goods games, and common …

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 …

Humans work together in groups to tackle shared problems and contribute to local club
goods that benefit other group members. Whereas benefits from club goods remain group …

Impersonal cooperation among strangers enables societies to create valuable public goods,
such as infrastructure, public services, and democracy. Several factors have been proposed …

This article reports the results of a meta‐study of 96 prisoner's dilemma studies comprising
more than 3,500 participants. I disentangle the role of 'risk'(to co‐operate unilaterally) and …

This article investigates solidarity arising from economic exchange, by studying a multiplex
network of collaboration, trust and social support. After a qualitative pre-study, we performed …

Many instances of social interaction display either or both of the following well-documented
phenomena. People tend to interact with similar others (homophily). They also tend to treat …

We examine the roots of variation in corruption across societies, and we argue that marriage
practices and family structure are an important, overlooked determinant of corruption. By …

This article investigates the importance of the endogenous selection of partners for trust and
cooperation in market exchange situations, where there is information asymmetry between …

Sacrifice is widely believed to enhance cooperation in churches, communes, gangs, clans,
military units, and many other groups. We find that sacrifice can also work in the lab, apart …