Welfare Analysis Incorporating a Structural Entry-Exit Model: A Case Study of Medicare HMOs
Should the government subsidize entry to promote competition? In theory, free entry does not guarantee the socially optimum number of entrants. In differentiated product markets, free entry can result either in excessive or insufficient entry. In this paper I propose an empirical framework to address this issue with a case study of the Medicare HMO market for 2003 and 2004. I perform counterfactual welfare simulations with different entry conditions and with different government payment rates to HMOs. The results indicate that uniformly raising the payment rate lowers national welfare, which supports the government's efforts to contain the payment rate in my sample years. A comparison of the cases with and without entry and/or market power indicates that this welfare loss does not come from additional entry, but instead the oligopolistic market structure and market distortion from the payment rate subsidy. The number of entrants is likely to be insufficient.
|Date of creation:||Jun 2006|
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- Paul Contoyannis & Andrew M. Jones & Roberto Leon-Gonzalez, 2002.
"Using Simulation-based Inference with Panel Data in Health Economics,"
Department of Economics Working Papers
2002-13, McMaster University.
- Paul Contoyannis & Andrew M. Jones & Roberto Leon-Gonzalez, 2004. "Using simulation-based inference with panel data in health economics," Health Economics, John Wiley & Sons, Ltd., vol. 13(2), pages 101-122.
- David Besanko & David Dranove & Mark Shanley, 2001. "Exploiting a Cost Advantage and Coping with a Cost Disadvantage," Management Science, INFORMS, vol. 47(2), pages 221-235, February.
- Shiko Maruyama, 2006. "Welfare Analysis Incorporating a Structural Entry-Exit Model: A Case Study of Medicare HMOs," Hi-Stat Discussion Paper Series d06-166, Institute of Economic Research, Hitotsubashi University.
- Federico Ciliberto & Elie Tamer, 2009.
"Market Structure and Multiple Equilibria in Airline Markets,"
Econometric Society, vol. 77(6), pages 1791-1828, November.
- Elie Tamer & Federico Ciliberto, 2004. "Market Structure and Multiple Equilibria in Airline Markets," 2004 Meeting Papers 52, Society for Economic Dynamics.
- Ciliberto, Federico & Tamer, Elie, 2009. "Market structure and multiple equilibria in airline markets," MPRA Paper 38635, University Library of Munich, Germany.
- Elie Tamer & Federico Ciliberto, 2004. "Market Structure and Multiple Equilibria in Airline Markets," Econometric Society 2004 North American Winter Meetings 517, Econometric Society.
- Bresnahan, Timothy F. & Reiss, Peter C., 1991. "Empirical models of discrete games," Journal of Econometrics, Elsevier, vol. 48(1-2), pages 57-81.
- Leemore Dafny & David Dranove, 2008.
"Do report cards tell consumers anything they don't already know? The case of Medicare HMOs,"
RAND Journal of Economics,
RAND Corporation, vol. 39(3), pages 790-821.
- Leemore Dafny & David Dranove, 2005. "Do Report Cards Tell Consumers Anything They Don't Already Know? The Case of Medicare HMOs," NBER Working Papers 11420, National Bureau of Economic Research, Inc.
- Steven T. Berry & Joel Waldfogel, 1999.
"Free Entry and Social Inefficiency in Radio Broadcasting,"
RAND Journal of Economics,
The RAND Corporation, vol. 30(3), pages 397-420, Autumn.
- Steven Berry & Joel Waldfogel, 1996. "Free Entry and Social Inefficiency in Radio Broadcasting," NBER Working Papers 5528, National Bureau of Economic Research, Inc.
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