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arXiv · 0711.1654

Effects of inhomogeneous activity of players and noise on cooperation in spatial public goods games

Jian-Yue Guan·Zhi-Xi Wu·Ying-Hai Wang
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Abstract

We study the public goods game in the noisy case by considering the players with inhomogeneous activity teaching on a square lattice. It is shown that the introduction of the inhomogeneous activity of teaching of the players can remarkably promote cooperation. By investigating the effects of noise on cooperative behavior in detail, we find that the variation of cooperator density $ρ_C$ with the noise parameter $κ$ displays several different behaviors: $ρ_C$ monotonically increases (decreases) with $κ$; $ρ_C$ firstly increases (decreases) with $κ$ and then it decreases (increases) monotonically after reaching its maximum (minimum) value, which depends on the amount of the multiplication factor $r$, on whether the system is homogeneous or inhomogeneous, and on whether the adopted updating is synchronous or asynchronous. These results imply that the noise plays an important and nontrivial role in the evolution of cooperation.

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Jian-Yue Guan, Zhi-Xi Wu, Ying-Hai Wang. 2007-11-11. Effects of inhomogeneous activity of players and noise on cooperation in spatial public goods games. https://doi.org/10.1103/physreve.76.056101

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