Selection strategies of the channel structure for two competing closed-loop supply chains are investigated by the
presence of price competition in retail. Results show that from the perspective of the total profit of the supply chain, the
centralized channel structure dominates the decentralized channel structure when the competing intensity is relatively small;
conversely, the decentralized channel structure outweighs the centralized channel structure when the competing intensity is
very large. From the perspective of the consumers and the environment, irrespective of the competing intensity, coherent
selection on the centralized channel structure is the best choice.