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Dual effects of conformity on the evolution of cooperation in social dilemmas
Changwei Huang1, Yuqin Li2, Luoluo Jiang3
1School of Computer, Electronics and Information, Guangxi University, Nanning 530004, China and Guangxi Key Laboratory of Multimedia Communications and Network Technology, Guangxi University, Nanning 530004, China.
Abstract:
Human beings are easily impacted by social influences, due to their social nature. As an essential manifestation of social influences, conformity is associated with the frequency witnessed in others' behavior, involving normative conformity and informational conformity according to the reaction of individuals. The former comes from the fear of a normative environment, while the latter means most behaviors are followed due to information asymmetry. Normative conformity significantly enhances network reciprocity, producing optimal cooperation at a moderate proportion, which induces within-cluster behavioral homogeneity and between-cluster behavioral diversity. On the contrary, informational conformity has an inhibitory effect on the evolution of cooperation for a low proportion of the conformity population, which contributes to the formation of defectors' clusters. The symmetry and duality of the two types of conformity on cooperation evolution provide an interesting and unexplored approach for future research, revealing the mechanism of conformity in evolutionary games.
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