中文摘要：

针对政府对经销商租赁补贴的情况,构建了由一个制造商和一个经销商组成的销售与租赁混合需求下的双闭环供应链系统,研究了集中决策与分散决策下的最优定价策略,探讨了租赁补贴、成本参数等对定价策略和利润的影响,并通过算例对结论进行了验证.研究表明：集中决策下的最优租赁量与最优销售量分别是分散策略下的最优租赁量和最优销售量的两倍;分散决策下,制造商的最优利润是经销商的最优利润的两倍,且总利润低于集中决策下的总利润;增大租赁补贴,可以增加产品的需求量,促使消费者以租赁的方式使用产品.

英文摘要：

Considering the government rental subsidies,a double closed-loop supply chain model consisting of a single manufacturer and a single distributor was established.According to the model,the optimal pricing strategy under circumstances of both centralized decision-making and decentralized decision-making was studied,and the influences of rental subsidies and cost parameters on the pricing strategy and profit were discussed.The correctness of the constructed model was proved via an example.The studies prove that：the optimal amount of leases and sales under the centralized decision-making are twice the amount under the decentralized decision-making;under the decentralized decision-making,the manufacturer＇s optimal profit is twice that of the dealer,in addition,the total profit is lower than the total profit under the centralized decision-making;if the rent subsidies are increased,the demand for products will also be increased,so it can prompt consumers to use the products in the form of lease.