mechanisms for sustaining cooperation. We present a novel intuitive combination of strategies that sustains cooperation in … essentially the unique mechanism to support full cooperation, and it is robust to various perturbations. Finally, we extend the … characterize which observation structure is optimal for sustaining cooperation. …

considered as a promising solution to resolve the social dilemma problem. However, previous research showed that cooperation …

theory of revealed altruism comes closest to explaining our results. …-dependent conditional cooperation, nor differences in perceived kindness of others' cooperation. Thus, even when sharing the same game form …

lower likelihood of cooperation, and confirms that malleability is a good criterion for judging the credibility of cheap …

low probability of survival. We derive a rule for the evolutionary stability of cooperation, x/z > T/R, where x represents … the duration of mutual cooperation, z the duration of exploitation, T the defector’s free-riding payoff, and R the payoff … for mutual cooperation. This finding suggests that higher survival costs can enhance social welfare by selecting for …