关键词: 随机产出, 三级供应链, 风险分担, 供应链协调

Abstract: This paper researches the coordination of a three level supply chain system consisting of one supplier, one manufacturer and one retailer. The decision variables include the raw material quantity of the supplier, the order quantity of the manufacturer and the order quantity of the retailer. The uniqueness of the supply chain coordination benchmark under centralized decision-making is analyzed, and the coordination of buy back contract, buy back and output risk sharing combined contract demonstrated. The results show that the buyback contract used by the manufacturer and the retailer can improve the supply chain performance, but can’t achieve the global optimization of the supply chain. From the perspective of risk sharing, the buy back and output risk sharing combined contract can not only coordinate the supply chain effectively, but also obtain the Pareto improvement of the profit of the members of the supply chain under certain conditions. The correctness of the above conclusions is verified by a numerical example, and the effect of the buyback price on the order quantity, the amount of raw material input and the profit are analyzed. At the same time, we also analyze the contract preferences of each supply chain members.

Key words: random output, three-level supply chain, risk sharing, supply chain coordination