Journal
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
Volume 389, Issue 6, Pages 1273-1280Publisher
ELSEVIER
DOI: 10.1016/j.physa.2009.11.044
Keywords
Complex networks; Public goods game; Cooperation
Categories
Funding
- Major State Basic Research Development Program of China [2004CB318109]
- Program for New Century Excellent Talents in University [NCET-07-0787]
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The public goods game (PGG) is generally considered as a Suitable paradigm to explain ubiquitous cooperative behavior. In this study, We investigated the evolutionary PGG oil scale-free networks and studied the effect of individual heterogeneity by setting the cooperator x an investment Value correlated to its degree as I-x = N . k(x)(beta)/Sigma(j)k(j)(beta), where k(x) is the degree of x, j runs over all players and is a tunable parameter. It is shown that the cooperation level is remarkably promoted by negative values of beta whereas it is highly depressed by positive values of beta. Moreover, the effect of environmental noise has also been investigated. Our result may sharpen the understanding of cooperation induced by the individual diversity. (C) 2009 Elsevier B.V. All rights reserved.
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