Buy-and-Sell模式下基于延期支付的供应链协调研究

Study on Supply Chain Coordination Based on Deferred Payment under Buy-and-sell Mode

考虑在由原料供应商、OEM及制造商构成的三级供应链中,OEM面临资金约束时,制造商采用Buyand-Sell模式从原料供应商处采购原料,通过数量优势获得价格折扣,再转卖给OEM,OEM和制造商的应付款都延期支付。建立基于Buy-and-Sell模式的模型,求解该模式下制造商的最优订购量;并通过与不采用Buy-andSell模式时,无资金约束和资金约束下的模型进行对比,求解使制造商和OEM的利润均不低于资金约束情况下和无资金约束情况下利润的延期支付取值范围。数值分析表明:Buy-and-Sell模式下,供应链系统的利润大于在经典报童模型下的期望利润,该模式可以实现供应链协调。

In this paper,we studied the three-echelon supply chain composed by a raw material supplier,an OEM and a manufacturer,where when the OEM was faced with funds constraint,the manufacturer would adopt the buy-and-sell mode to purchase raw materials from the supplier and was rewarded with a price discount due to the large volume of the purchase.It would then sell the materials purchased to the OEM and the accounts payable of both the OEM and the manufacturer were paid in deferral.Then we built the buy-and-sell based model and solved it to obtain the optimal ordering quantity of the manufacturer under this mode; next,by comparing the models with and without funds constraint when not adopting the buy-and-sell mode,we determined the extent of the deferred payment so that the profit of the manufacturer and the OEM was not less than that when there was funds constraint or not.The numerical analysis demonstrated that under the buy-and-sell mode,the profit of the supply chain system was larger than the expected profit in the classic newsboy model and that the mode could coordinate the supply chain.