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Asymmetric Information in Health Insurance: Evidence from the National Medical Expenditure Survey

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Author Info
Cardon, James H
Hendel, Igal

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Abstract

Adverse selection is perceived to be a major source of market failure in insurance markets. There is little empirical evidence on the extent of the problem. We estimate a structural model of health insurance and health care choices using data on single individuals from the NMES. A robust prediction of adverse-selection models is that riskier types buy more coverage and, on average, end up using more care. We test for unobservables linking health insurance status and health care consumption. We find no evidence of informational asymmetries. Copyright 2001 by the RAND Corporation.

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Publisher Info
Article provided by The RAND Corporation in its journal RAND Journal of Economics.

Volume (Year): 32 (2001)
Issue (Month): 3 (Autumn)
Pages: 408-27
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Handle: RePEc:rje:randje:v:32:y:2001:i:3:p:408-27

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  1. Patrick Bajari & Han Hong & Ahmed Khwaja, 2006. "Moral Hazard, Adverse Selection and Health Expenditures: A Semiparametric Analysis," NBER Working Papers 12445, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  2. David M. Cutler & Amy Finkelstein & Kathleen McGarry, 2008. "Preference Heterogeneity and Insurance Markets: Explaining a Puzzle of Insurance," NBER Working Papers 13746, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  3. Pau Olivella & Marcos Vera-Hernandez, 2006. "Testing for adverse selection into private medical insurance," IFS Working Papers W06/02, Institute for Fiscal Studies. [Downloadable!]
  4. Hanming Fang & Michael P. Keane & Dan Silverman, 2006. "Sources of Advantageous Selection: Evidence from the Medigap Insurance Market," NBER Working Papers 12289, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  5. Amy Finkelstein & James Poterba, 2006. "Testing for Adverse Selection with "Unused Observables"," NBER Working Papers 12112, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  6. Karsten Jeske & Sagiri Kitao, 2007. "U.S. tax policy and health insurance demand: can a regressive policy improve welfare?," Working Paper 2007-13, Federal Reserve Bank of Atlanta. [Downloadable!]
  7. Stanciole, Anderson, 2007. "Health Insurance and Life Style Choices: Identifying the Ex Ante Moral Hazard," IRISS Working Paper Series 2007-10, IRISS at CEPS/INSTEAD. [Downloadable!]
  8. Keith J. Crocker & John R. Moran, 2002. "Contracting with Limited Commitment: Evidence from Employment-Based Health Insurance Contracts," Center for Policy Research Working Papers 45, Center for Policy Research, Maxwell School, Syracuse University. [Downloadable!]
  9. Alma Cohen & Liran Einav, 2005. "Estimating Risk Preferences from Deductible Choice," NBER Working Papers 11461, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  10. Mark V. Pauly & Kate H. Withers & Krupa Subramanian-Viswana & Jean Lemaire & John C. Hershey, 2003. "Price Elasticity of Demand for Term Life Insurance and Adverse Selection," NBER Working Papers 9925, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  11. Mark V. Pauly, 2005. "Effects of Insurance Coverage on Use of Care and Health Outcomes for Nonpoor Young Women," American Economic Review, American Economic Association, vol. 95(2), pages 219-223, May. [Downloadable!]
  12. Lucien Gardiol & Pierre-Yves Geoffard & Chantal Grandchamp, 2005. "Separating selection and incentive effects in health insurance," PSE Working Papers 2005-38, PSE (Ecole normale supérieure). [Downloadable!]
    Other versions:
  13. Karlan, Dean S. & Zinman, Jonathan, 2007. "Observing Unobservables: Identifying Information Asymmetries with a Consumer Credit Field Experiment," CEPR Discussion Papers 6182, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
    Other versions:
  14. Lucien Gardiol & Pierre-Yves Geoffard & Chantal Grandchamp, 2003. "Separating Selection and Incentive Effects: an Econometric Study of Swiss Health Insurance Claims Data," DELTA Working Papers 2003-27, DELTA (Ecole normale supérieure). [Downloadable!]
  15. Amy Finkelstein & Kathleen McGarry, 2003. "Private Information and its Effect on Market Equilibrium: New Evidence from Long-Term Care Insurance," NBER Working Papers 9957, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  16. Liran Einav & Amy Finkelstein & Paul Schrimpf, 2007. "The Welfare Cost of Asymmetric Information: Evidence from the U.K. Annuity Market," NBER Working Papers 13228, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  17. Di Novi, Cinzia, 2008. "Adverse selection in the U.S. health insurance markets: Evidence from the MEPS," P.O.L.I.S. department's Working Papers 103, Department of Public Policy and Public Choice - POLIS. [Downloadable!]
  18. Amy Finkelstein & Kathleen McGarry, 2006. "Multiple Dimensions of Private Information: Evidence from the Long-Term Care Insurance Market," American Economic Review, American Economic Association, vol. 96(4), pages 938-958, September. [Downloadable!]
  19. M. Kate Bundorf & Jonathan D. Levin & Neale Mahoney, 2008. "Pricing and Welfare in Health Plan Choice," NBER Working Papers 14153, National Bureau of Economic Research, Inc. [Downloadable!] (restricted)
  20. Chantal Grandchamp & Lucien Gardiol, 2008. "Does a mandatory telemedicine call prior to visiting a physician reduce costs or simply attract good risks?," Working Papers 0801, University of Lausanne, Institute of Health Economics and Management (IEMS). [Downloadable!]
  21. Nick Netzer & Florian Scheuer, 2006. "Competitive Screening in Insurance Markets with Endogenous Labor Supply," Discussion Papers of DIW Berlin 614, DIW Berlin, German Institute for Economic Research. [Downloadable!]
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