近年来,国家采取一系列财政和货币政策,刺激私人消费、扩大内需,取得了一定的成绩。但许多深层次的问题仍未得到解决,内需的进一步扩大也受到制约。本文通过一个跨期消费最优化模型在中国的应用,分析制约中国内需扩大的因素,找寻突破口。 In recent years, the state has adopted a series of fiscal and monetary policies to stimulate private consumption and expand domestic demand and achieved some success. However, many deep-seated problems have still not been solved, and the further expansion of domestic demand is also restricted. This paper analyzes the application of an intertemporal consumption optimization model in China, analyzes the factors that restrict the expansion of China’s domestic demand and finds a breakthrough.