Prior studies of the effect of group identification on cooperation in social dilemmas have advanced two competing …' cooperation more than prosocials' cooperation. This suggests that the consequence of group identification is that collective goals …

cooperation systems that differ both in their level of in-group favoritism and in the tools that they employ to enforce … cooperation regimes. This paper uses an anthropological measure of the tightness of historical kinship systems to study the … structure of cooperation patterns and enforcement devices across historical ethnicities, contemporary countries, ethnicities …

We study the effect of group size on cooperation in voluntary contribution mechanism games. As in previous experiments … find that cooperation is highest of all in twoperson groups. The findings in the high MPCR condition are consistent with … those from n-person prisoner's dilemma and oligopoly experiments that suggest it is more difficult to sustain cooperation in …

in honesty and cooperation and tested the individual-level links between these two moral domains. Participants completed … both honesty and cooperation tasks after observing their peers. Consistent with the literature, separate analysis of the … two domains indicated both negative and positive peer influences in honesty and in cooperation, with negative influences …

in honesty and cooperation and tested the individual-level links between these two moral domains. Participants completed … both honesty and cooperation tasks after observing their peers. Consistent with the literature, separate analysis of the … two domains indicated both negative and positive peer influences in honesty and in cooperation, with negative influences …