title: Does mobility decrease cooperation?
abstract: We explore the minimal conditions for sustainable cooperation on a spatially distributed population of memoryless, unconditional strategies (cooperators and defectors) in presence of unbiased, non-contingent mobility in the context of the Prisoner's Dilemma game. We find that cooperative behavior is not only possible but may even be enhanced by such an "always-move" rule, when compared with the strongly viscous ("never-move") case. In addition, mobility also increases the capability of cooperation to emerge and invade a population of defectors, what may have a fundamental role in the problem of the onset of cooperation.
authors.affiliation: Instituto de Física and International Center of Condensed Matter Physics, Universidade de Brasília, CP 04513, 70919-97 Brasília DF, Brazil.
authors.forename: Mendeli H
authors.initials: MH
authors.lastname: Vainstein
authors.forename: Ana
authors.initials: A
authors.lastname: T C Silva
authors.forename: Jeferson J
authors.initials: JJ
authors.lastname: Arenzon
mesh_terms: D003299:Cooperative Behavior; D005716:Game Theory; D006801:Humans; D008960:Models, Psychological; D009068:Movement; D011157:Population Dynamics; D011593:Psychology, Social