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 … "falling behind" is particularly salient. -- competition ; natural resource scarcity ; antisocial behaviour ; cooperation …

We show in a public goods experiment on three continents that conditional cooperation is a universal behavioral … regularity. Yet, the number of conditional cooperators and the extent of conditional cooperation are much higher in the U ….S.A. than anywhere else. -- conditional cooperation ; public goods ; experiment …

We examine gender differences in trust in another party's cooperation (CC) or its ability (AC). While men and women do … not differ concerning trust in cooperation, gender has a strong influence when trust in another subject's ability is … required. -- trust ; gender ; experiment ; cooperation ; ability ; stereotypes …

find a large and positive effect of endogenous institutional choice on the level of cooperation in comparison to … exogenously implemented institutions. This suggests that participation rights enhance cooperation in groups. With endogenous … levels of cooperation. Our results are evaluated against the predictions of social preference models. -- public goods …