关键词: 以旧换新, 产品绿色度, 产品定价, 折旧度, 消费者效用, Stackelberg博弈

Abstract: To improve the product green degree and waste products recycling,three supply chain decision models including non-trade-in model,trade-in for manufacturer model and trade-in for retailer model was built by considering the product green design strategy with trade-in policy for enterprises.The optimal product green degree,product retail price and old product rebate price for each model were investigated.The comparative analysis of product retail price,product demand,corporate profits and the effect of old customer market share,old product depreciation degree on optimal corporate profits for each model were discussed by numerical simulation.The results indicated that the product retail price was highest under trade-in for the retailer model;the product demand was greatest under trade-in for the manufacturer model;the manufacturer profit was biggest under trade-in for the manufacturer model;the biggest retailer profit depended on product green degree,old customer market share and old product depreciation degree when they were below a certain threshold respectively;the retailer profit was biggest under trade-in for the manufacturer model when they were above the thresholds respectively;the retailer profit was biggest under trade-in for the retailer model.

Key words: trade-in, product green degree, product pricing, depreciation degree, consumer utility, Stackelberg game