Pricing Coordination Of Dual-Channel Closed-loop Supply Chain Based On Market Size Expansion And Asymmetric Information

With the rapid development of social economy,the national income level is also constantly improving,and the speed of product update and iteration is accelerating rapidly.At the same time,consumers have put aside a large number of waste products.If they can not be disposed reasonably,the waste products will cause serious damage to the natural environment.Recycling and remanufacturing of waste products can not only reduce environmental pollution,but also build a new era social form of"environment-friendly" and "resource-saving".The expansion of remanufacturing market scale will also stimulate the market economy for the second time and drive the economic development to expand to new fields.The traditional closed-loop supply chain is composed of manufacturers and retailers.In order to establish a more convenient interaction path with consumers,in recent years,manufacturers continue to expand their sales channels,and the ecomme-rce model of direct selling and recycling of manufacturers has developed rapidly,for-ming a competitive relationship with retailers’ distribution.There is a large amount of asymmetric information between manufacturers and retailers.The value of informati-on plays an important role in the decision-making and pricing of them.Manufacturers have a better understanding of product production and direct marketing channels,and retailers have a better understanding of distribution channels and consumer behavior.If one decision-maker does not share its private information to maximize personal in-terests,the other decision-maker will be at a disadvantage,Therefore,we need to build a reasonable contract mechanism to make the information sharing between the decision-makers profitable.This paper studies the closed-loop supply chain under the co-existence mode of dual channel sales and dual channel recycling,which is composed of manufacturer and retailer.Based on the uncertain information of market scale expansion ratio,information sharing and non sharing model,centralized decision model and supply chain coordination pricing model are constructed respectively.The Stackelberg game method is used to solve the model.The results show that:1)under the decentralized decision-making,the manufacturer’s sharing of private information will damage its own interests,but the retailer’s expected profits and the supply chain’s expected total profits will increase;2)to some extent,with the increase of consumer price sensitivity,the impact of manufacturer’s information sharing on itself and retailers will gradually decrease Less,with the increase of price substitution coefficient between channels,the impact of manufacturer information sharing on itself and retailers is gradually enhanced;3)supply chain coordination pricing model can improve the performance level of supply chain and achieve supply chain coordination.