| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Prisoner's Dilemma Game on Two Types of Positively Correlated Networks |
| LIU Yong-Kui1, LI Zhi1, CHEN Xiao-Jie2,3, WANG Long1,2 |
| 1Center for Complex Systems, Department of Automatic Control Engineering, Xidian University, Xi'an 7100712State Key Laboratory for Turbulence and Complex Systems, Center for Systems and Control, College of Engineering, Peking University, Beijing 1008713Department of Zoology, University of British Columbia, Vancouver BC V6T 1Z4, Canada |
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| Cite this article: |
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LIU Yong-Kui, LI Zhi, CHEN Xiao-Jie et al 2009 Chin. Phys. Lett. 26 048902 |
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Abstract We study the effects of degree correlations on the evolution of cooperation in the prisoner's dilemma game with individuals located on two types of positively correlated networks. It is shown that the positive degree correlation can either promote or inhibit the emergence of cooperation depending on network configurations. Furthermore, we investigate the probability to cooperate as a function of connectivity degree, and find that high-degree individuals generally have a higher tendency to cooperate. Finally, it is found that small-degree individuals usually change their strategy
more frequently, and such change is shown to be unfavourable to cooperation for both kinds of networks.
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| Keywords:
89.75.Hc
02.50.Le
87.23.Ge
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Received: 01 September 2008
Published: 25 March 2009
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| PACS: |
89.75.Hc
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(Networks and genealogical trees)
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02.50.Le
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(Decision theory and game theory)
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87.23.Ge
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(Dynamics of social systems)
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