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Different perceptions of social dilemmas: evolutionary multigames in structured populations
Zhen Wang1, Attila Szolnoki2, Matjaž Perc3
1School of Software, Dalian University of Technology, Dalian 116621, China.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 15, 2014
Summary
Introducing payoff matrix variations in evolutionary multigames, even in structured populations, promotes cooperation. Heterogeneity creates cooperative leaders, driving cooperation through asymmetric imitation flows, enhancing network reciprocity.
Area of Science:
- Evolutionary game theory
- Social dilemma dynamics
- Population genetics
Background:
- Social dilemmas, like the prisoner's dilemma, are often perceived differently by participants.
- Understanding cooperation in structured populations with diverse game perceptions is crucial.
Purpose of the Study:
- To investigate how payoff matrix heterogeneity influences the evolution of cooperation in structured populations.
- To explore the mechanisms driving cooperation when individuals perceive social dilemmas differently.
Main Methods:
- Simulations of evolutionary multigames in structured populations.
- Incorporation of a fraction of players altering payoffs to play prisoner's dilemma or snowdrift game.
- Analysis of strategy imitation flows and network reciprocity.
Main Results:
- Increased fraction of players with altered payoff matrices significantly promotes cooperation.
- Payoff heterogeneity creates cooperative leaders, leading to asymmetric imitation favoring cooperation.
- Cooperation evolution is robust to network structure and dynamic game selection.
Conclusions:
- Heterogeneity in payoff perception within structured populations is a key driver for the evolution of cooperation.
- This study supports heterogeneity-enhanced network reciprocity and offers insights into resolving social dilemmas.
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