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 …

contributions game experiment. A common identity between the leader and her two followers is beneficial for cooperation: average … study the effects of heterogeneous identities. We find no effect on cooperation when only one of the followers shares the … identity is an effective but fragile instrument to promote cooperation. …

significant differences between overcompensation and equal compensation appeared for relationship preservation and cooperation … (Study 4). These results show that while overcompensation may rebuild cooperation (albeit not more effectively than equal …

-)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 …