Effects of emotion on the evolution of cooperation in a spatial prisoner’s dilemma game

作者：

Highlights：

• The evolution of cooperation hypothesized that emotion can influence one’s own willingness to change strategies is investigated.

• Distinct from the traditional evolutionary model, our model hypothesized that individuals are divided into two categories, namely, non-competitive individuals and competitive individuals, and their emotion is considered quantifiable and cumulative.

• The existence of non-competitive individuals has a significant positive effect on the survival of cooperators, but the presence of competitive individuals also makes non-competitive individuals much less effective in promoting cooperation.

• The emotional cumulative length plays a key role in promoting overall cooperation, but surprisingly, the cooperation rate of competitive individuals peaks at an intermediate value of emotional cumulative length.

摘要

•The evolution of cooperation hypothesized that emotion can influence one’s own willingness to change strategies is investigated.•Distinct from the traditional evolutionary model, our model hypothesized that individuals are divided into two categories, namely, non-competitive individuals and competitive individuals, and their emotion is considered quantifiable and cumulative.•The existence of non-competitive individuals has a significant positive effect on the survival of cooperators, but the presence of competitive individuals also makes non-competitive individuals much less effective in promoting cooperation.•The emotional cumulative length plays a key role in promoting overall cooperation, but surprisingly, the cooperation rate of competitive individuals peaks at an intermediate value of emotional cumulative length.

论文关键词：Emotion,Evolutionary game,Cooperation

论文评审过程：Received 30 March 2021, Revised 2 June 2021, Accepted 28 June 2021, Available online 12 July 2021, Version of Record 12 July 2021.

论文官网地址：https://doi.org/10.1016/j.amc.2021.126497