The conventional wisdom is that scale-free networks are prone to cooperation spreading. In this paper we investigate the cooperative behavior on the structured scale-free network. In contrast to the conventional wisdom that scale-free networks are prone to cooperation spreading, the evolution of cooperation is inhibited on the structured scale-free network when the prisoner's dilemma (PD) game is modeled. First, we demonstrate that neither the scale-free property nor the high clustering coefficient is responsible for the inhibition of cooperation spreading on the structured scale-free network. Then we provide one heuristic method to argue that the lack of age correlations and its associated ‘large-world’ behavior in the structured scale-free network inhibit the spread of cooperation. These findings may help enlighten further studies on the evolutionary dynamics of the PD game in scale-free networks.
The prisoner's dilemma in structured scale-free networks
Xing Li,Yonghui Wu,Zhihai Rong,Zhongzhi Zhang,Shuigeng Zhou
Published 2009 in Journal of Physics A: Mathematical and Theoretical
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- Publication year
2009
- Venue
Journal of Physics A: Mathematical and Theoretical
- Publication date
2009-05-17
- Fields of study
Mathematics, Physics, Computer Science
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