5Coscelli, A. "The Importance of Doctors' and Patients' Preferences in the Prescription Decision. " Journal of Industrial Economics, 2000, 48, pp. 349-369.
6Darby, M.R. and Karni, E. "Free Competition and the Optimal Amount of Fraud. " Journal of Law and E- conomics, 1973, 16, pp. 67-88.
7Hellerstein, J. "The Importance of the Physician in the Generic versus Trade Name Decision. " Rand Journal of Economics, 1998, 29, pp. 108-136.
8Iizuka, T. "Experts' Agency Problems: Evidence from the Prescription Drug Market in Japan. " Rand Journal of Economics, 2007, 38, pp. 844-862.
9Karen, E. and Winnie, Y. "Hospital Competition under Regulation Prices: Application to Urban Health Sec- tor Reforms in China. " International Journal of Health Care Finance and Economics, 2004, 4, pp. 343-368.
10Keeler, E.B. ;Carter, G. and Newhouse, J.P. "A Model of the Impact of Reimbursement Schemes on Health Plan Choice. " Journal of Health Economics, 1998, 17,pp. 297-320.