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Limitation of network inhomogeneity in improving cooperation in coevolutionary dynamics

By Li-Xin Zhong and Tian Qiu


Cooperative behavior is common in nature even if selfishness is sometimes better for an individual. Empirical and theoretical studies have shown that the invasion and expansion of cooperators are related to an inhomogeneous connectivity distribution. Here we study the evolution of cooperation on an adaptive network, in which an individual is able to avoid being exploited by rewiring its link(s). Our results indicate that the broadening of connectivity distribution is not always beneficial for cooperation. Compared with the Poisson-like degree distribution, the exponential-like degree distribution is detrimental to the occurrence of a higher level of cooperation in the continuous snowdrift game (CSG)

Topics: Physics - Physics and Society, Computer Science - Social and Information Networks
Year: 2011
DOI identifier: 10.1016/j.physa.2011.10.013
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