中文摘要：

基于电子产品新产品与再造品存在价格差异的实际情况,考虑消费者行为,构建第三方回收模式下三级闭环供应链.建立集中决策和分散决策下的差别定价模型,求解出两种决策下的最优定价策略和收益.对比发现分散决策下的闭环供应链存在效率损失,设计基于收益共享与数量折扣的两段式协调契约,并给出收益共享比例和回收折扣率的取值范围,使闭环供应链在分散决策下的总收益达到集中决策下的收益水平,实现供应链的协调.

英文摘要：

Based on price differences between new products and recycling electronics goods in real life,a three-level closed-loop supply chain with third-party collection of used products is built considering the consumer behavior.The centralized and decentralized differential pricing models are established to analyze the optimal pricing strategy and revenue for the members.It is found that the efficiency is lost in the decentralized closed-loop supply chain.Thus,a two-stage coordination contract based on revenue sharing and quantity discount is designed with the revenue sharing proportion and recovery discount rate,which makes the revenue of the decentralized closed-loop supply chain equal to the revenue of the centralized closed-loop supply chain to achieve the coordination of the supply chain.