Anlaysis of Expanding Fiscal Policy's Sustainability——Also Discussing the Crowding Out Effect of Public Sector Investment

Sustainability of expanding fiscal policy is discussed in this text respectively from macroeconomy situations, risk of government debt, out effect of public sector investment. It is concluded in this text that it is still early for expanding fiscal policy to fade out, and concluded that; Our country's simple national debt risk is not high, but the comprehensive debt risk of our government is quite large, and the key to control comprehensive debt risk of our government is to control the stock.It is also concluded that the out effect of our public sector is not obvious to folk investment, the main reason of inactive folk investment is another crowding out effect, namely discrimination and limit to folk investment, the solution to solve this problem is deepening reform.