A Comparative Research on the Different Positions of Retailers in Supply Chains

The decision roles of participators in supply chains are worthy of studying.In this paper,we examine the impact of four roles on the structure and competitiveness of a supply chain with a linear deterministic demand.The supply chain is made of one manufacturer and two retailers.We obtain the conditions relative to those different competitive roles for retailers to attain.The indexes such as social welfare,consumer surplus and industry profit are compared.