4Crew, M.A.and Kleindorfer.ER. The Economics of Public Utility Regulation[M].The Maemilian Press,1986, 314-320.
5Stigler. The theory of economic regulatior[J].Journal of Economics & Management Science, Feb 1971.
6OECD.Reviews of Regulatory Reform. Regulatory Policies in OECD Countries:From Interventionism to Regulatory Govemanc[M].Paris:OECD Publications,2002,16-17.