Promotion of Cooperation in Coevolutionary Public Goods Game on Complex Networks with and without Topology Change
Norihito Toyota

TL;DR
This paper investigates how coevolution of network topology and strategies influences cooperation in public goods games, revealing conditions that promote or preserve cooperation through computer simulations.
Contribution
It introduces a coevolutionary public goods game model with fixed contribution per member and analyzes the effects of network topology changes on cooperation.
Findings
Network topology changes can promote cooperation under certain conditions.
The initial network structure influences the level of cooperation and average payoff.
Game dynamics and topology evolution interact to affect strategy stability.
Abstract
The evolution of cooperation among unrelated individuals in human and animal societies remains a challenging issue across disciplines. It is an important subject also in the evolutionary game theory to understand how cooperation arises. The subject has been extensively studied especially in Prisoners' dilemma game(PD) but the emergence of cooperation is also an important subject in public goods game(PGG). In this article, we consider coevolutionary PGG on complex networks where both the topology of the networks and strategies that players adopt under the influence of game dynamics varies. Though cooperators can contribute a fixed amount per game in PGG on networks in the previous studies, the cooperators contribute a fixed amount per member of the group in PGG of this article. The latter is seemed to be more natural than the former model. These models lead to great differences in both…
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Taxonomy
TopicsEvolutionary Game Theory and Cooperation · Evolution and Genetic Dynamics · Mathematical and Theoretical Epidemiology and Ecology Models
