3Rothschild M, Joseph ES. Equilibrium in Competitive insurance markets: An essay on the economics of imperfect Information[J]. Quarterly Journal of Economics, 1976(90):629-650.
4Cutler DM, Sarah JR. Paying for health insurance: the tradeoff between competition and adverse selection[J]. Quarterly Journal of Economics, 1998,113(2):433-466.
5Wilson C. Amodel of Insurance Markets with Incomplete Informa- tion[J]. Journal of Economic Theory, 1977(16):167-207.
6Cutler DM, Mark M, Joseph PN. How does managed care do it?[J]. Rand Journal of Economics, 2000,31(3):526-548.
7Ahman D,David C, Richard Z. Enrollee mix, treatment intensity, and cost in competing indemnity and HMO plans[J]. Journal of Health Economics, 2003(22):23-45.
8Ellis RP, Thomas G M. Hospital response to prospective payment: moral hazard, selection, and practice-style effects[J]. Journal of Health Economics, 1996(15):257-277.
9Newhouse JP. Reimbursing health plans and health providers: efficiency in production versus selection[J]. Journal of Economic Literature, 1996(34):1236-1263.
10Pauly MV. Is cream-skimming a problem for the competitive medical market[J]. Journal of Health Economics, 1984, 3(1):87-95.
