关键词: 供应链, Stackelberg主从对策, 多制造商, 收入共享契约, 采购优化策略

Abstract: To study purchasing optimization strategy based on contract negotiations and their influences on improving the performance of supply chain composed of competing multi-manufacturers and an independent and common retailer, according to the fact that the retailer was with an endogenous reservation profit, a Stackelberg game model was constructed in which manufacturers were leaders and the retailer was the follower. Then, the retailer's purchasing strategy had a unique optimal solution, and the game among multiple manufacturers had a unique optimal symmetric Nash equilibrium solution with manufacturers simultaneously announcing revenue-sharing contracts, were proved. Relationship of decisions between centralized and decentralized supply chain under revenue-sharing contracts was discussed. And the condition for coordinating the supply chain was defined. Inflences of system parameters and products'substitutability level on the supply chain performance were further analyzed and verified through a simulation experiment at last.

Key words: supply chain, Stackelberg game, multi-manufacturers, revenue-sharing contract, purchasing optimization strategy