期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 525, 期 -, 页码 1323-1329出版社
ELSEVIER
DOI: 10.1016/j.physa.2019.03.108
关键词
Cooperation; Spatial public goods game; Reward; Loyalty
资金
- National Natural Science Foundation of China [61772005, 61702104]
- Natural Science Foundation of Fujian Province, China [2018J01664]
- Foundation of Key Laboratory of Intelligent Metro of Universities in Fujian Province of China [3001703]
Reward has been proved to be an effective mechanism to sustain cooperation among selfish individuals. In this paper, we propose a history loyalty-based reward in which a cooperator can gain additional reward if the time he sticks to the cooperation strategy is over a loyalty threshold. Accordingly, defectors have to bear the cost of reward subsequently. The results on the spatial public goods game show that the cooperation could be immensely enhanced when the loyalty threshold and the reward factor are suitable. Besides, the time evolution of cooperator density and the spatial distribution of cooperators and defectors are investigated. Our work extends the form of reward in the evolution of spatial public goods game. (C) 2019 Published by Elsevier B.V.
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