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PDF 1.2 MB
DOI: http://dx.doi.org/10.7551/978-0-262-32621-6-ch062
Pages 392-397
First published 30 July 2014

Pseudo-Static Cooperators: Moving Isn’t Always about Going Somewhere

Olaf Witkowski, Nathanael Aubert-Kato

Abstract (Excerpt)

The evolution of cooperation has long been studied in Game Theory and Evolutionary Biology. In this study, we investigate the impact of movement control in a spatial version of the Prisoner's Dilemma in a three dimensional space. A population of agents is evolved via an asynchronous genetic algorithm, to optimize their strategy. Our results show that cooperators rapidly join into static clusters, creating favorable niches for fast replications. Surprisingly, even though remaining inside those clusters, cooperators keep moving faster than defectors. We analyze the system dynamics to explain the stability of this behavior.