Abstract: To research the influence of corporate social responsibility (CSR) behaviors of different member enterprises on pricing decisions for closed-loop supply chain (CLSC) under three channel power structures, six pricing decision models of CLSC are constructed with CSR behaviors and channel power structures taken into consideration. The equilibrium results based on the model’s analysis show that the recycling rate of waste products is the highest when the manufacturer undertakes CSR under the channel power structure dominated by the retailer. However, the recycling efficiency of waste products is the lowest when the manufacturer undertakes CSR under the channel power structure dominated by the manufacturer. In the Nash equilibrium Game between the manufacturer and retailer (without channel power), regardless of whether the manufacturer or retailer undertakes the CSR, the retail price of new products is always the lowest, the market demand is the highest, and the overall profits of CLSC is always the largest. When there is a channel power in the CLSC, compared with the channel leader is responsible for the CSR, it is more advantageous for channel followers to undertake CSR in order to expand the market demand of new products, improve the recycling rate of waste products and increase the overall profits of CLSC.

Key words: closed-loop supply chain, corporate social responsibility, channel power structure, pricing decision