期刊
FRONTIERS IN PHYSICS
卷 9, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fphy.2021.639252
关键词
prisoner’ s dilemma game; game theory; cooperation; neutral reward; complex network
资金
- Science Foundation of Yunnan Province [202001BB050063]
- Open Foundation of Key Laboratory in Software Engineering of Yunnan Province [2020SE315]
Reward is an effective mechanism for promoting cooperation, and a conditional neutral reward mechanism can help cooperators survive and dominate the system during evolution.
Reward is an effective mechanism that promotes cooperation. However, an individual usually reward her opponents in certain cases. Inspired by this, a conditional neutral reward mechanism has been introduced. In detail, an individual will reward his or her neighbors with the same strategy when the payoff of the focal one is higher than that of his or her neighbors. And simulations are conducted to investigate the impact of our mechanism on the evolution of cooperation. Interestingly, cooperation can survive and dominate the system. Nominal antisocial reward that defectors reward each other is rarely because of the greed of defectors. By contrast, cooperators inside the cooperative clusters share the payoff with cooperators on the boundary so that the latter can form shields to protect cooperators.
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