Cooperative dynamics of snowdrift game on spatial distance-dependent small-world networks

L. H. Shang, X. Li () and X. F. Wang

The European Physical Journal B: Condensed Matter and Complex Systems, 2006, vol. 54, issue 3, 369-373

Abstract: We investigate the evolution of cooperative behaviors of small-world networking agents in a snowdrift game mode, where two agents (nodes) are connected with probability depending on their spatial Euclidean lattice distance in the power-law form controlled by an exponent α. Extensive numerical simulations indicate that the game dynamics crucially depends on the spatial topological structure of underlying networks with different values of the exponent α. Especially, in the distance-independent case of α=0, the small-world connectivity pattern contributes to an enhancement of cooperation compared with that in regular lattices, even for the case of having a high cost-to-benefit ratio r. However, with the increment of α>0, when r≥0.4, the spatial distance-dependent small-world (SDSW) structure tends to inhibit the evolution of cooperation in the snowdrift game. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Keywords: 02.50.Le Decision theory and game theory; 87.23.Kg Dynamics of evolution; 89.75.Fb Structures and organization in complex systems (search for similar items in EconPapers)
Date: 2006
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Citations: View citations in EconPapers (6)

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DOI: 10.1140/epjb/e2006-00454-8

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