Evolution of cooperation on heterogeneous supply networks

Abstract

Strategies can significantly influence the performances of individual players and groups in supply networks. However, these strategies evolve over time. Thus, it is essential to probe the evolution of strategies in this context. This paper investigates the evolution of cooperation on supply networks focusing on the impacts of network topologies. Due to the difficulty in mapping the topological structures of large-scale supply networks, we introduce a topological model for supply networks. Then repeated prisoner’s dilemma game is played on the resulting networks. The simulation results show that topological structures have close relevance to the cooperation level in the networks. Compared with homogeneous structures, heterogeneous structures are helpful to promote cooperation. In addition, strategy payoff and competition pressure are also involved with the evolution of cooperation. This work may offer a useful insight into understanding complex strategy behaviours in supply networks.