期刊
JOURNAL OF PHYSICS COMMUNICATIONS
卷 2, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2399-6528/aaab2e
关键词
evolutionary dynamics; cooperation; complex systems; invasion processes
资金
- H2020 FETPROACT-GSS CIMPLEX [641191]
- PROTON project [699824]
- Dutch Research Organization (NWO) [612.001.352]
- Spanish Ministry of Economy and Competitiveness (MINECO)
- FEDER (EU) under the grant ESOTECOS [FIS2015-63628-C2-2-R]
The emergence and survival of cooperation is one of the hardest problems still open in science. Several factors such as the existence of punishment, repeated interactions, topological effects and the formation of prestige may all contribute to explain the counter-intuitive prevalence of cooperation in natural and social systems. The characteristics of the interaction networks have been also signaled as an element favoring the persistence of cooperators. Here we consider the invasion dynamics of cooperative behaviors in complex topologies. The invasion of a heterogeneous network fully occupied by defectors is performed starting from nodes with a given number of connections (degree) k(0). The system is then evolved within a Prisoner's Dilemma game and the outcome is analyzed as a function of k0 and the degree k of the nodes adopting cooperation. Carried out using both numerical and analytical approaches, our results show that the invasion proceeds following preferentially a hierarchical order in the nodes from those with higher degree to those with lower degree. However, the invasion of cooperation will succeed only when the initial cooperators are numerous enough to form a cluster from which cooperation can spread. This implies that the initial condition has to be a suitable equilibrium between high degree and high numerosity. These findings have potential applications to the problem of promoting pro-social behaviors in complex networks.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据