GAMS仿真在宏观经济学教学中的应用——以IS-LM模型为例

Application of GAMS Simulation in Teaching Macroeconomics——A Case of IS-LM Model

文章以IS-LM模型为例,探讨了GAMS仿真在宏观经济学教学中的应用。具体的政策模拟可分为四个方面:(1)财政和货币政策分别对均衡国民收入、利率、消费和投资的影响;(2)财政和货币政策混合的综合影响;(3)IS和LM曲线斜率对财政和货币政策效果的影响;(4)实现经济目标的政策选择。GAMS仿真的结果不仅进一步验证了IS-LM模型的基本结论,同时也更为直观地体现了政策变动对经济的各种影响,研究结果对实验经济学在中国的应用与推广具有一定的参考价值。

This article discusses the GAMS simulation in teaching macroeconomics, illustrated by IS-LM model. The policy simulations are carried out in four respects： （a）The individual impact of fiscal and monetary policy on equilibrium income, interest rates, consumption and investment; （b）Mixed effect of fiscal and monetary policies; （c）Impact of IS and LM curves slope on effectiveness of fiscal and monetary policy; （d）Policy options for achieving economic goals. GAMS simulation results not only further validate the basic conclusions of IS-LM model, but also reflect the effect of policy change on the economy more vividly. The application of GAMS simulation in this paper is very helpful to the extension of experimental economics in teaching macroeconomics in China.