| Reasonable scale of government makes the society benefits from economies of scale, and inhibits the breeding of uneconomical factors. At this point, the average cost to maintain the scale of government reached its lowest point, its effectiveness got maximize. For the pursuit of this ideal state, Anhui local government has been did administrative reform for many times to optimized the scale of government, since the reform and opening up. however, the scale of Anhui local government also have lots of problems now such as the changes of the number of government agencies were in the "vicious circle",the number of civil servants increased too fast, expressed as "relative surplus",the government financial scale have trends of accelerate expansion and so on. In order to deal with these problems, we need to study the real reasons for changes of the scale of Anhui local government. Through the use of public choice theory, the Government as the provider of public goods,the eliminator of external diseconomies,the facilitators of social redistribution and the existence of bureaucracy,interest groups,fiscal illusion are the inner and decisive reasons for the scale changes of Anhui local government, At the same time, Econometric analysis shows that the political, economic, social factors such as level of urbanization, economic reform, fiscal decentralization, administrative reform and so on have affected the changes of the scale of Anhui local government by different degrees. |