Simulation on relationship between enterprises behavior and profit in supply network based on evolutionary game theory

Using the evolutionary game theory,this paper discussed the cooperative strategy evolution process with profit changes between the core enterprises and non-core enterprises in supply network.It established the replicated dynamic equations and obtained equilibrium solutions,according by the phase diagram of replicate dynamic reflected the stable strategies of evolutionary game.It carried out the simulation on the relationship between enterprises' behavior and the profits using Netlogo software,proved the results had consistency with the phase diagram showing.The research results indicate that the profit obtained and changes are the most important basis for enterprises to change behavior and select strategy,the stable strategies of evolutionary game for enterprises not only participate and cooperate,give up cooperation or watching for long time are also the possible strategy choice.Finally it put forward suggestions for how to improve the stability of enterprises cooperation in supply network.