4Pauly, Mark, and Mark Satterthwaite.. The Pricing of Primary Care Physicians' Services: A Test of the Role of Consumer Information [J], Bell Journal of Economics , 1981, 12 (2): 488-506.
5Lazear, Edward P. Agency, Earnings Profiles, Productivity, And Hours Restrictions [J], American Economic Review, 1981, 71:606-20
6Shapiro C. Investment, moral hazard, and occupational licensing [J], Review of Economic Studies, 1986,53,: 843 - 862.
7Friedman,Milton. Capitalism and Freedom [M],Chicago: University of Chicago Press, 1962.
8Kessel,Reuben. Price Discrimination in Medicine[J], Journal of Law and Economics, 1958,1:20-53.
9Rottenberg, Simon. The Economics of Occupational Licensing [M], in Alchain, Armen A. and Kessel,R,Aspects of Labor Economics (Competition, Monopoly and the Pursuit of Money), Princeton,:Princeton University Press, 1962.
10White, William D. Dynamic Elements of Regulation: The Case of Occupational Licensure [J], Research in Law and Economics,1979,1:15-33.
10Pauly,Mark,and Mark Satterthwaite.The Pricing of Primary Care Physicians'Services :A Test of the Role of Consumer Information [J ].Bell Journal of Economics., 1981,1:2(02) :488-506.