Abstract: Pricing and producing policy is studied on the closed-loop supply chain based on product life cycle in manufacturer competing settings, in which completely new products are produced by single manufacturer by using raw material in the first product life cycle. However besides new products, used products are recycled and remanufactured from the second period on. And at the same time, alternatives manufacturer arises. A two-period duopoly supply chain model is established and its optimal pricing and producing policy is derived. And then it is expanded to cases of multi-period and infinite-period. Results show that the different pricing policy will be employed according to the saving of remanufacturing unit product in two-period model, the same pricing policy will be utilized in all periods except the first period and the last in multi-period model, and the identical pricing policy will be implemented when the competition arises in infinite-period model. For all the three cases above, in order to decrease manufacturer’s cost and obtain advantages when facing competition, a lower price in the first period will be adopted to collect more cores. As the cost saving of remanufacturing increases, manufacturer’s profits and sales increase, and competitor’s profits and sales decrease. Finally a numerical example is given to prove the above conclusions.

Key words: closed-loop supply chain, remanufacturing, product life cycle, manufacturer competition, pricing policy, producing policy