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 …

We examine the effect of payoff variations on cooperation in one-shot prisoner's dilemma games. We focus on three … impact on cooperation. Temptation directly deters cooperation and indirectly harms cooperation by lowering beliefs about the … opponent's cooperativeness. Efficiency indirectly affects cooperation through beliefs, but the magnitude of the effect is …

We study the effects of voluntary participation on cooperation in collective action problems. Voluntary participation … may foster cooperation through a mechanism of assortative selection of interaction partners based on false consensus bias …

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 …