Evolutionary dilemmas in a social network

Authors:
Leslie Luthi;Enea Pestelacci;Marco Tomassini
Affiliations:
Information Systems Institute, University of Lausanne, Switzerland;Information Systems Institute, University of Lausanne, Switzerland;Information Systems Institute, University of Lausanne, Switzerland
Venue:
ECAL'07 Proceedings of the 9th European conference on Advances in artificial life
Year:
2007

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Abstract

We simulate the prisoner's dilemma and hawk-dove games on a real social acquaintance network. Using a discrete analogue of replicator dynamics, we show that surprisingly high levels of cooperation can be achieved, contrary to what happens in unstructured mixing populations. Moreover, we empirically show that cooperation in this network is stable with respect to invasion by defectors.