The existence of fence-sitters relaxes the spatial prisoner’s dilemma and enhances network reciprocity

作者：

Highlights：

• We have built a new spatial prisoner’s dilemma model that enhances network reciprocity.

• The key idea is the introduction of a third strategy: “fence-sitters” who cooperate and defect with equal probability.

• Situations with larger Stag-Hunt-type and smaller Chicken-type dilemmas are specifically relaxed.

摘要

•We have built a new spatial prisoner’s dilemma model that enhances network reciprocity.•The key idea is the introduction of a third strategy: “fence-sitters” who cooperate and defect with equal probability.•Situations with larger Stag-Hunt-type and smaller Chicken-type dilemmas are specifically relaxed.

论文关键词：Network recipricity,Prisoner’s dilemma,Fence-sitter

论文评审过程：Received 7 May 2020, Revised 23 August 2020, Accepted 30 August 2020, Available online 8 September 2020, Version of Record 8 September 2020.

论文官网地址：https://doi.org/10.1016/j.amc.2020.125624