From local to global dilemmas in social networks.
Flávio L. Pinheiro,Jorge M. Pacheco,Jorge M. Pacheco,Francisco C. Santos,Francisco C. Santos +4 more
TLDR
It is shown how homogeneous networks transform a Prisoner's Dilemma into a population-wide evolutionary dynamics that promotes the coexistence between cooperators and defectors, while heterogeneous networks promote their coordination.Abstract:
Social networks affect in such a fundamental way the dynamics of the population they support that the global, population-wide behavior that one observes often bears no relation to the individual processes it stems from. Up to now, linking the global networked dynamics to such individual mechanisms has remained elusive. Here we study the evolution of cooperation in networked populations and let individuals interact via a 2-person Prisoner's Dilemma – a characteristic defection dominant social dilemma of cooperation. We show how homogeneous networks transform a Prisoner's Dilemma into a population-wide evolutionary dynamics that promotes the coexistence between cooperators and defectors, while heterogeneous networks promote their coordination. To this end, we define a dynamic variable that allows us to track the self-organization of cooperators when co-evolving with defectors in networked populations. Using the same variable, we show how the global dynamics — and effective dilemma — co-evolves with the motifs of cooperators in the population, the overall emergence of cooperation depending sensitively on this co-evolution.read more
Citations
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Interdependent network reciprocity in evolutionary games
TL;DR: It is shown that an unbiased coupling allows the spontaneous emergence of interdependent network reciprocity, which is capable to maintain healthy levels of public cooperation even in extremely adverse conditions.
Journal ArticleDOI
Optimal interdependence between networks for the evolution of cooperation
TL;DR: It is shown that in fact only an intermediate density of sufficiently strong interactions between networks warrants an optimal resolution of social dilemmas, and results are robust to variations of the strategy updating rule, the topology of interdependent networks, and the governing social dilemma, thus suggesting a high degree of universality.
Journal ArticleDOI
Self-organization towards optimally interdependent networks by means of coevolution
TL;DR: In this paper, the authors introduce the coevolution of strategy and network interdependence to see whether this can give rise to elevated levels of cooperation in the prisoner's dilemma game.
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