重要宏观经济变量对财政政策效果的影响研究——以政府购买支出增加为例

A Study on the Influence of the Important Macro-economic Variables on the Expansive Fiscal Policy's Effects——A Case of the Increased Government Purchase Expenditure

以政府购买支出增加(△g)的扩张性财政政策为例,由IS—LM模型可以分别推导出政府购买支出乘数公式、单位政府购买挤出效应公式以及财政政策乘数公式,利用这些公式可以分析宏观经济变量与扩张性财政政策效果之间的相关性。

To take the expansionary fiscal policy as an example,according to the simple IS-LM Model,We can get a multiplier formula of government purchase expenditure,a crowding-out effect formula per unit government purchase expenditure and a multiplier formula of fiscal policies.By using these formula,we can find the correlation between the macroeconomic variables and the effect of expansionary fiscal policy.