扩张性的财政政策效果不明显的原因在于扩大政府的支出时没有适当降低税收，使高税率制约了投资的增长，采取以降税减负为主的税收政策，有助于弥补政府投资的不足，促进投资的快速增长。 Expansion of the effect of the fiscal policy is not obvious because the expansion of government spending did not properly reduce the tax so that the high tax rate restricts the growth of investment, tax cuts to reduce taxes based tax policy will help make up for the lack of government investment and promote The rapid growth of investment.