Unbounded indirect reciprocity: Is reputation-based cooperation bounded by group membership?

Unbounded indirect reciprocity: Is reputation-based cooperation bounded by group membership?

Article history: Received 24 October 2016 Revised 10 January 2017 Accepted 28 February 2017 Available online xxxx Bounded generalized reciprocity (BGR) predicts that people cooperate to maintain a positive reputation with ingroup, but not outgroup, members—and this explains ingroup favoritism in cooperation. We propose that the benefits of maintaining a positive reputation are not limited by gr...

Ingroup favoritism and intergroup cooperation under indirect reciprocity based on group reputation

Indirect reciprocity in which players cooperate with unacquainted other players having good reputations is a mechanism for cooperation in relatively large populations subjected to social dilemma situations. When the population has group structure, as is often found in social networks, players in experiments are considered to show behavior that deviates from existing theoretical models of indire...

Evolutionary Pathways to Group Cooperation: Reputation, Reciprocity, and Signaling

Cooperation under Indirect Reciprocity and Imitative Trust

Indirect reciprocity, a key concept in behavioral experiments and evolutionary game theory, provides a mechanism that allows reciprocal altruism to emerge in a population of self-regarding individuals even when repeated interactions between pairs of actors are unlikely. Recent empirical evidence show that humans typically follow complex assessment strategies involving both reciprocity and socia...

Evolution of cooperation through indirect reciprocity.

How can cooperation through indirect reciprocity evolve and what would it be like? This problem has previously been studied by simulating evolution in a small group of interacting individuals, assuming no gene flow between groups. In these simulations, certain 'image scoring' strategies were found to be the most successful. However, analytical arguments show that it would not be in an individua...