Cooperation in Scale-free networks with limited Associative Capacities
J. Poncela, J. Gómez-Gardeñes, Y. MorenoPHYSICAL REVIEW E 83, 057101 (2011)
Times cited: 20
Abstract
We study the effect of limiting the number of interactions (the
associative capacity) a node can
establish per round of a Prisoner’s Dilemma game. We focus on the way
this limitation influences the level of cooperation sustained by
scale-free networks. We show that, when the game includes cooperation
costs, limiting the associative capacity of nodes to a fixed quantity
renders in some cases larger values of cooperation than in the
unrestricted scenario. This allows to define an optimum capacity for
which cooperation is maximally enhanced. Finally, for the case without
cooperation costs, we find that even a tight limitation of the
associative capacity of nodes yields the same levels of cooperation as
in the original network.