We examine experimentally the impact of communication on trust and cooperation. Our design admits observation of … avoid guilt, as can be modeled using psychological game theory. When players exhibit such guilt aversion, communication may …

Under what conditions can cooperation be sustained in a network of strangers? Here we study the role of institutions … possible, including full intertemporal cooperation supported by a social norm based on community punishment of defectors. We … coordination on intertemporal cooperation in ways that networks of strangers were unable to achieve through social norms. …

that group identity is a key factor in the explanation of intergroup cooperation and competition. …

Revealing the identities of contributors has been shown to increase cooperation in public goods games. In this paper we … computer chat. The results confirm the positive effect of identification on cooperation among individuals. For groups, however …, we only find a small and temporary effect of identification, irrespective of the type of communication. The reason for …

) and mixed (different nationality) experimental sessions in Lima, to examine interactions that require cooperation …