Long deliberation times promote cooperation in the prisoner’s dilemma game

Dongqi Wang, Xuanyue Shuai, Qiuhui Pan, Jingye Li, Xiaolong Lan and Mingfeng He

Physica A: Statistical Mechanics and its Applications, 2020, vol. 537, issue C

Abstract: Some individuals could be quite cautious when making decisions and do not update their strategy frequently in the prisoner’s dilemma game. That is, instead of updating their strategy immediately after the game, they make decisions only after a certain period of deliberation. Moreover, individuals’ strategy update is based on the cumulative payoffs they got from their prior update. Since individuals in a group could be homogeneous or heterogeneous, their strategy can depend on two aspects: the initial time of the update and the length of its delay time. In this paper, three different cases that may lead to the delay of strategy update are taken into consideration. We find that introducing a deliberation mechanism can promote cooperation, that this effect could be greater when the delay time is extended, and that heterogeneity among individuals also has a positive effect on cooperation.

Keywords: Evolutionary game; Deliberation; Heterogeneity; Cooperation (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:537:y:2020:i:c:s0378437119315481

DOI: 10.1016/j.physa.2019.122719

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