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 …

initial cooperation rates are similar, it increases in the groups with higher intelligence to reach almost full cooperation … differences in the response to past cooperation of the partner. In higher intelligence subjects, cooperation after the initial … difference is absent. Cooperation of higher intelligence subjects is payoff sensitive, thus not automatic: in a treatment with …

economics. This paper explores voting on a scheme of intergroup competition, which facilitates cooperation in a social dilemma … situation. Experimental results show that the competitive scheme fosters cooperation. Competition is popular, but the electoral …

Cooperation among people who are not related to each other is sustained by the availability of punishment devices which …

contracts is characterized by efficiency wages, rent sharing and high levels of cooperation, whereas fully incomplete contracts …

cooperation (at the very least, to a secession of hostilities) when such groups are faced with the threat of potentially stronger …

of cooperation during war, we find that individual cooperativeness robustly increases with the length of time a person …