The European Physical Journal B

, 86:127

Effects of directional migration on prisoner’s dilemma game in a square domain

Authors

    • School of ScienceBeijing University of Posts and Telecommunications
  • Qionglin Dai
    • School of ScienceBeijing University of Posts and Telecommunications
  • Haihong Li
    • School of ScienceBeijing University of Posts and Telecommunications
  • Xiaolan Qian
    • School of Electronics and InformationZhejiang University of Media and Communications
  • Mei Zhang
    • Department of PhysicsBeijing Normal University
  • Junzhong Yang
    • School of ScienceBeijing University of Posts and Telecommunications
Regular Article

DOI: 10.1140/epjb/e2013-40076-5

Cite this article as:
Cheng, H., Dai, Q., Li, H. et al. Eur. Phys. J. B (2013) 86: 127. doi:10.1140/epjb/e2013-40076-5

Abstract

We introduce a new migration rule, the directional migration, into evolutionary prisoner’s dilemma games defined in a square domain with periodic boundary conditions. We find that cooperation can be enhanced to a much higher level than the case in the absence of migration. Additionally, the presence of the directional migration has profound impact on the population structure: the directional migration drives individuals to form a number of dense clusters which resembles social cohesion. The evolutionary game theory incorporating the directional migration can reproduce some real characteristics of populations in human society and may shed light on the problem of social cohesion.

Keywords

Statistical and Nonlinear Physics
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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013