Abstract: In the dual channel closed- loop supply chain, the manufacturer has opened traditional retail channel and network agent selling channel. The traditional retail channel retailer is responsible for selling products and recycling waste products;the online retailer agents for the sale and charges a commission . In this paper, the pricing strategy of the manufacturer in the three decision-making models is studied, which is the centralized decision making, the manufacturer-leading Stackelberg game, the manufacturer and the retailer′ Bertrand game,and the Nash bargaining model is used to coordinate the results. Results show that wholesale price, traditional channel retail price and manufacturer′s profit are higher in two kinds of decentralized decision making, while the retail price of online channels, retailer′s profit and the overall profit are lower in Bertrand game; compared to two kinds of decentralized decision making, centralized decision-making′s traditional channel retail price and overall profit are the lowest, online channel retail price is the highest;the stronger the bargaining power of manufacturers and retailers, the more profit in the profit distribution mechanism.

Key words: dual channel closed-loop supply chain, cross price elasticity coefficient, commission ratio coefficient, recovery rate, Nash bargaining model