【摘要】 传统的IS-LM模型由于存在许多缺陷一直以来都备受批评。理性预期革命之后出现的基于跨期动态最优化的IS-LM模型却能够很好地克服传统的缺陷,逐渐受到当代宏观经济学家的青睐。本文尝试在最优化IS-LM基本模型的基础上,引入对定期存款的配置行为,加入政府和国外部门,将模型拓展为四部门三资产模型,然后利用中国数据采用理性预期的方法对参数进行估计,并解释了方程系数的含义。最后对于模型如何实现动态化用以描述经济的演化作了一些探讨。更多还原

【Abstract】 Traditional IS-LM framework is regarded as a classical implement for macroeconomics,but it has been sharply criticized for its wellknown flaws for many years. However,nowadays the optimizing intertemporal version of IS-LM approach attributed to rational expectation revolution starts being favorable for macroeconomists,especially monetarist,since it can make up for the weaknesses of traditional ISLM well. In this paper,we extend basic optimizing IS-LM model to a new version including four sectors and three financial assets by introducing description of allocation of fixed deposit and incorporating the behavior of government and foreign sector into it. Then we estimate the parameters for the model using Chinese macroeconomic data by rational expectational approach and explain their implications. At the same time some discussion on how to realize its dynamic analysis function is also necessary.更多还原