关键词: 创新投入, 供应链, 协作, 博弈模型, 契约

Abstract: A supply chain game model about retailers innovation investment to reduce operation cost was constructed, which consisted of one manufacturer and two competitive heterogeneous retailers and was demand sensitive to prices. Research showed that in the decentralized decision model, the manufacturers profits would increase with the retailers innovative ability and competitiveness. Retailers innovative ability had no relationship with the manufacturers optimal wholesale pricing, and their vertical externality within the channel consisted in enhancing the demand of the manufacturer. Innovative investment increased the retailers profits at the beginning. When their innovation ability was high enough, the innovative investment decreased their profits owing to their competition. Finally, a compound contract of supply chain coordination based on quantity-discount schedule was proposed and the numerical examples were provided to verify the conclusions.

Key words: innovation investment, supply chains, coordination, game model