关键词: 改良品, 供应链协调, 缺货, 价格折扣, 合作博弈

Abstract: In a two-echelon supply chain system of ameliorating items consisted of a single producer and multiple sellers,the mutual coordination of ameliorating items replenishment among multiple sellers was researched by considering the conditions that the sellers were allowed shortages and the producer provided price discount policy.The functions of minimum total cost per unit time were built under decentralized replenishment and centralized replenishment,and the necessary and sufficient conditions for centralized replenishment better than decentralized replenishment was deduced.Subsequently,the cooperative game theory was used to describe the cost allocation problem of centralized replenishment,and the Shapley Value Method was used to allocate the minimum total cost per unit time.According to a numerical example,the process of cost allocation was demonstrated,and the allocation results of four different cost allocation algorithms were compared.The sensitivity analysis of cost parameters for net ameliorating rate and cost coordinating exponent was given,and the relevant references for sellers' replenishment decision-making was provided.

Key words: ameliorating items, supply chain coordination, shortage, price discount, cooperative game