中文摘要：

在分析经典回购合约的回购价格、回构批量及最高回购率的基础上,进一步讨论当供应商实际允许执行的最高回购率风险波动时,零售商相应的订货策略。建立了回购率风险波动时以利润最大化为目标的数学模型;分别讨论了有无风险波动等3种情况下零售商及供应链总体利润变化。得出了当相关参数风险波动时,零售商相应的最优订货策略。当回购率风险波动时,供应链成员及供应链总的期望利润都会下降。而回购率风险波动零售商却不做相应订货策略调整的话,整个供应链的期望利润跟经典回购时一样,但是零售商的利润会部向供应商转移,产生利润损失。

英文摘要：

Based on the analysis of classical buy-back contract＇s price,quantity and the maximum buy-back rates,this paper further discusses the retailers＇ order strategies when the supplier are able to promise the maximum buy-back rates during the risk fluctuations.In this paper,a mathematical model is established to maximize the profit when buy-back rates risk fluctuates.The paper also discusses different profits variations of retailers and of the entire supply chains whether or not considering the risk fluctuations under three different situations.After knowing the parameters of the risk fluctuations,the best order strategies of retailers will make significant sense.The fluctuations of the risk of buy-back rates would bring down the expected profits of the members of the supply chain,as well as the overall profits of the supply chain.If the retailer does not adjust his order strategies when the risks fluctuate,the expected profits of the entire supply chain will remain the same as the classic buy-back case,while parts of the profits of the retailer will be shifted to the supplier,causing the retailer＇s profit losses.