![]() Discriminators rely on a proper moral assessment rule. We comparatively analyze four of the leading moral assessment rules-shunning, image scoring, stern judging, and simple standing-and base the model on the giving game in regular networks for Cooperators, Defectors, and Discriminators. ![]() Here, we present a new individual-based model for the evolution of reciprocal cooperation between reputation and networks. Although it is known that two of the major mechanisms in the evolution of cooperation are spatial selection and reputation-based reciprocity, theoretical study of the interplay between both mechanisms remains almost uncharted. The application of Staying suggests that the strict application of moral judgment is limited.ĭespite recent advances in reputation technologies, it is not clear how reputation systems can affect human cooperation in social networks. We analyze the Staying norm in terms of evolutionary game theory and demonstrate that Staying is most effective in establishing cooperation compared to the prevailing social norms, which rely on constant monitoring and unconditional assessment. In this case, the choice about whether or not to give help to the potential receiver does not affect the image of the potential giver. Under the Staying norm, the image of the person who makes the decision to give help stays the same as in the last assessment if the person on the receiving end has a bad image. ![]() Here, we propose a new simple norm called " Staying " that prescribes abstaining from assessment. Despite intensive research, however, there is no definitive consensus on what social norms best promote cooperation through indirect reciprocity, and it remains unclear even how those who refuse to help the bad should be assessed. ![]() Indirect reciprocity leads to conditional cooperation according to social norms that discriminate the good (those who deserve to be rewarded with help) and the bad (those who should be punished by refusal of help). Indirect reciprocity is a major mechanism in the maintenance of cooperation among unrelated individuals. ![]()
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