hence competitive pressure is higher. By contrast, levels of cooperation are very similar across areas. This indicates that … scarcity does not hamper cooperation, at least as long as a sub-survival level has not been reached. Our data further reveal a …

commonly accepted wisdom that the cooperation-enhancing effect of communication requires the mutual exchange of promises, we …

“divided loyalties” and “conditional cooperation” perspectives – that give opposite predictions about how individuals will …

The provision of public goods often relies on voluntary contributions and cooperation. While most of the experimental …

formation of within-group cooperation is affected by different types and degrees of between-group interactions. We show that … when between-group interactions are of the same directions and weak (strong), within-group cooperation for providing public … the opposite directions or unidirectional, within-group cooperation will necessarily occur. In addition, endogenous …

. This raises the important issue of just how such voluntary cooperation might be obtained. In this paper, we explore the …

importantly related to cooperation behavior in a large and heterogeneous sample. We provide evidence on the microfoundation of … this relation by use of an experimental design that enables us to disentangle preferences for cooperation from beliefs … about others' cooperation. Our analysis suggests that the standard trust question used in the World Values Survey is a proxy …