Bilaterally-agree partner switching promotes cooperation in social dilemmas

Yimei Yang, Hao Sun and Genjiu Xu

Physica A: Statistical Mechanics and its Applications, 2022, vol. 585, issue C

Abstract: We investigate the evolution of cooperation with a bilaterally-agree partner switching mechanism in which two players rather than one determine whether to break a link. In this mechanism, we define an edge game to describe this bilateral consultation process. Through analyzing the Pure Nash Equilibrium of this game, we find that defectors intend to keep in touch with cooperators while cooperators prefer to break links with defectors in most cases. However, introducing such a mechanism results in that a defector would transfer part of his payoff to his cooperative neighbors conditionally, which maintains the link between cooperators and defectors. Besides, this transfer narrows the payoff gap between the two types of players and therefore promotes the propagation of cooperation. Our results highlight the importance of consultation on the realization of global cooperation.

Keywords: Evolutionary prisoner’s dilemma game; Partner switching; Bilateral consultation; Cooperation (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:585:y:2022:i:c:s0378437121007251

DOI: 10.1016/j.physa.2021.126452

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