Evolution of cooperation on complex networks with synergistic and   discounted group interactions

doi:10.1209/0295-5075/110/60006

CORC > 北京大学 > 工学院

	Evolution of cooperation on complex networks with synergistic and discounted group interactions
	Zhou, Lei ; Li, Aming ; Wang, Long
刊名	EPL
	2015
关键词	PUBLIC-GOODS GAMES STRUCTURED POPULATIONS PROMOTE COOPERATION SOCIAL DILEMMAS DYNAMICS EMERGENCE GRAPHS RETURNS WORLD
DOI	10.1209/0295-5075/110/60006
英文摘要	In the real world individuals often engage in group interactions and their payoffs are determined by many factors, including the typical nonlinear interactions, i.e., synergy and discounting. Previous literatures assume that individual payoffs are either synergistically enhanced or discounted with the additional cooperators. Such settings ignore the interplay of these two factors, which is in sharp contrast with the fact that they ubiquitously coexist. Here we investigate how the coexistence and periodical switching of synergistic and discounted group interactions affect the evolution of cooperation on various complex networks. We show that scale-free networks facilitate the emergence of cooperation in terms of fixation probability for group interactions. With nonlinear interactions the heterogeneity of the degree acts as a double-edged sword: below the neutral drift it is the best for cooperation while above the neutral drift it instead provides the least opportunity for cooperators to be fixed. The advantages of the heterogeneity fade as interactive attributes switch between synergy and discounting, which suggests that the heterogeneity of population structures cannot favor cooperators in group interactions even with simple nonlinear interactions. Nonetheless, scale-free networks always guarantee cooperators the fastest rate of fixation. Our work implies that even very simple nonlinear group interactions could greatly shape the fixation probability and fixation time of cooperators in structured populations indicated by complex networks. Copyright (C) EPLA, 2015; NSFC [61375120, 61020106005]; China Scholarship Council [201406010195]; SCI(E); ARTICLE; longwang@pku.edu.cn; 6; 110
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/419620]
专题	工学院
推荐引用方式 GB/T 7714	Zhou, Lei,Li, Aming,Wang, Long. Evolution of cooperation on complex networks with synergistic and discounted group interactions[J]. EPL,2015.
APA	Zhou, Lei,Li, Aming,&Wang, Long.(2015).Evolution of cooperation on complex networks with synergistic and discounted group interactions.EPL.
MLA	Zhou, Lei,et al."Evolution of cooperation on complex networks with synergistic and discounted group interactions".EPL (2015).