中文摘要：

由于自然资源的短缺和环境问题的凸显,国内外愈来愈多的学者对废旧产品的回收问题进行了研究。本文基于闭环供应链中产品质量差别的情形,分别建立了生产商及零售商混合回收模型、生产商及第三方回收商混合回收模型和零售商及第三方回收商混合回收模型。然后,分析了产品质量差异对选取闭环供应链混合回收渠道的影响,依次求出了最优的产品质量、产品零售价格和回收商的利润。最后,分析比较了混合回收模式中的回收商利润和回收率等因素。研究发现,综合考虑产品质量和供应链系统的利润等多个因素,生产商及零售商混合回收模型是较优的。

英文摘要：

With the shortage of natural resource and the deteriorating of environment,the recovery of used products draws more and more attention from researchers.Considering the product quality differentiation,several recovery modes in the closed loop supply chain are established.The recovery task is undertaken by manufacturers and retailers,manufacturers and the third-party recyclers,and retailers and the third-party recyclers respectively.Then,the effects of the quality of the remanufactured product based on the choice of recovery channel in closed loop supply chain are also analyzed.The optimal product quality,product retail price and profits of the related recyclers are obtained by analyzing respectively.At last,the contrast of several kinds of hybrid recovery modes is also analyzed.Considering the product quality and profits of the whole closed loop supply chain,the recovery mode of manufacturers and retailers is better than the other ones.