Trust games are employed to investigate the effect of heterogeneity in income and race on cooperation in South Africa … significantly affects individual trust behaviour. The low income subjects from both racial groups invest significantly less in …

study trust and reciprocity in the same context. For all-male groups, we find the same lack of superiority of interaction … treatments over no interaction. For all-female groups, some very simple social interactions have a positive impact on trust. …

good. We analyze what the equilibrium composition of groups are under centralized and centralized choice. We show that … there exists a top-down sorting equilibrium i.e. an equilibrium where there exists a set of prices which leads to groups … efficient even when groups compete among themselves. …

competitions do not reliably support cooperation because groups tend to be similar under relevant conditions. Moreover, even if … groups vary, cooperative groups may lose competitions for several reasons. Although repeated interactions and group …Repeated interactions provide a prominent but paradoxical hypothesis for human cooperation in one-shot interactions …

interpreted as evidence for the passing of cultural traits across generations and for cooperation being sustained by values rather …

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

. However, its relationship with how social groups are formed has received little attention. We design an experiment to analyze … more actively in the team-building task. …

We introduce "group cohesion" to study the economic relevance of social relationships in team production. We …, with high-cohesion groups being very likely to achieve superior equilibria. In exploratory analysis, we identify beliefs …

team projects. …

disproportional effects both at the country level and at the demographic group level. In terms of societal groups, our results suggest … that the aggregate results are mostly driven by a number of groups, most notably women, families with children, and the …