Understanding the proximate and ultimate sources of human cooperation is a fundamental issue in all behavioural … sciences. In this article we review the experimental evidence on how people solve cooperation problems. Existing studies show … without doubt that direct and indirect reciprocity are important determinants of successful cooperation. We also discuss the …

and rural participants of young and mature age cohorts. Russia is interesting for studying voluntary cooperation because … cooperation-enhancing effect of punishment. An important reason is that there is punishment of contributors in all four subject … cooperation that are sustained by sanctioning free riders only. -- social norms ; free riding ; misdirected punishment …

cooperation. -- uncertain enforcement ; public good game ; altruistic punishment ; decisionmaking under uncertainty ; cooperation …

urban and rural participants of young and mature age cohorts. Russia is interesting for studying voluntary cooperation … cooperation-enhancing effect of punishment. An important reason is that there is substantial punishment of high contributors in … voluntary cooperation that are sustained by sanctioning free riders only. -- social norms ; free riding ; misdirected punishment …

pillar is internalised norms of cooperation, sustained by emotions such as guilt and shame. The second pillar is the … motivation can sustain cooperation if enough people cooperate but can jeopardise social order if many others follow selfish …

cooperation. We deploy our framework in one-shot public goods experiments in the US and the UK, and in Morocco and Turkey. We find … that cooperation is higher in the US and UK than in Morocco and Turkey. Our framework shows that this result is driven … four subject pools. Our results highlight the central role of beliefs in explaining differences in voluntary cooperation …

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 …

We study the effects of voluntary participation on cooperation in collective action problems. Voluntary participation … may foster cooperation through an entry mechanism, which leads to assortative selection of interaction partners, or an …

interaction between the observability of the cooperation of others and the absence of punishment targeted at cooperative …

cooperation through two mechanisms: an entry mechanism, which leads to assortative selection of interaction partners, or an exit …