On the Necessity and Finiteness of Government Economical Function Existence

Economic function is the traditional function of government.In modern legal country,government's economic function is set up on the understanding that the market has some defects.At the same time,we should realize the also has its defect itself.It is the same not to work as the market.So the should adhere to the supplementary principle to the involvement of the market,balance goverment function and market function,realize the limited government and the promising government.