Roles of mixing patterns in cooperation on a scale-free networked game.

@article{Rong2007RolesOM,
  title={Roles of mixing patterns in cooperation on a scale-free networked game.},
  author={Zhihai Rong and Xiang Li and Xiao Fan Wang},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2007},
  volume={76 2 Pt 2},
  pages={027101}
}
We investigate how the degree-mixing pattern affects the emergence of cooperation in the networked prisoner's dilemma game. Our study shows that when a network becomes assortative mixing by degree, the large-degree vertices (hubs) tend to interconnect to each other closely, which destroys the sustainability among cooperators and promotes the invasion of defectors, whereas in disassortative networks, the isolation among hubs protects the cooperative hubs in holding onto their initial strategies… CONTINUE READING
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