Considering a two-stage supply chain structure including an agricultural products logistics service integrator and a vendor , a basic gaming model for quality coordination of cooperation in logistics service supply chain is established. In it, the logistics service integrator can choose to make quality supervision or otherwise and the supplier can accomplish cooperation according to the quality contact or choose to cheat. So, this paper witnesses the result of the mixed strategy Nash equilibrium of the gaming model and discusses the influence on quality coordination resulted from the competition among the logistics suppliers, then gets the new Nash equilibrium.
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