Cooperation is essential for complex biological and social systems and explaining its evolutionary origins remains a … central question in several disciplines. Tag systems are a class of models demonstrating the evolution of cooperation between …

-)establishing cooperation. The strategy is compared to well-known strategies in the domain and results presented. The initial findings, as well …

considered. We find that the "intelligence" of the players plays a crucial role in the way players learn to cooperate. The …

cooperation in an artificial society. In this framework the environmental pressure to cooperate is controllable by a single … results from experiments that implemented and tested environments based upon this new model of cooperation. The results show … that the pressure to cooperate leads to the evolution of communication skills facilitating cooperation. Furthermore, higher …

Cooperation among self-interested individuals pervades nature and seems essential to explain several landmarks in the … cooperation. In this work we approach the problem from a different angle. We consider a system of adaptive agents, in a two … steady states are characterised by different degrees of cooperation, "economic geographies" (population structure and maps of …

behavior. We propose that religious rituals promote in-group trust and cooperation that help to overcome collective … religious and secular Israeli kibbutzim, communal societies for which mutual cooperation is a matter of survival. Our results …

. Despite its role in hiring decisions and job discrimination, negotiations, and conflict and competition between groups … collective societies, the Israeli kibbutz. The facts that kibbutz members have voluntarily chosen their lifestyle of cooperation … levels of cooperation when paired with anonymous kibbutz members than when paired with city residents. In fact, when paired …

cooperation. Instead, other elements related to social norms and subjective valuation of the benefits and costs of the regulations …

group cooperation. It reports a series of experiments in the field where subjects are actual commons users. Household data … similar experiments. Participants-wealth and inequality reduced cooperation when groups were allowed to have face …-toface communication between rounds. There are implications for a greater awareness of nonpayoff asymmetries affecting cooperation in …