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Analysis of Adverse Selection and Moral Hazard in the Health Insurance Market of Iran

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  • GholamReza Keshavarz Haddad

    (Graduate School of Management and Economics, Sharif University of Technology)

  • Mahdieh Zomorrodi Anbaji

    (Graduate School of Management and Economics, Sharif University of Technology)

Abstract

This paper aims to estimate a demand model for health insurance and medical care in Iran, in the presence of heterogeneous and latent health status of individuals; moreover it tests the asymmetry of information in the health insurance market. Our data set have been taken from the Households’ expenditures survey (2006) of Iran. Parameters of the model are estimated by the Generalized Method of Moments (GMM) and the presence of asymmetric information (adverse selection and moral hazard) is tested by a non-parametric econometric method. The analytical model is specified under minimal assumptions on the selection process of different insurance categories and the statistical distribution of individual's latent health status. The findings confirm the presence of adverse selection hypothesis in personally purchased health insurance and moral hazard in all health insurance categories.

Suggested Citation

  • GholamReza Keshavarz Haddad & Mahdieh Zomorrodi Anbaji, 2010. "Analysis of Adverse Selection and Moral Hazard in the Health Insurance Market of Iran," The Geneva Papers on Risk and Insurance - Issues and Practice, Palgrave Macmillan;The Geneva Association, vol. 35(4), pages 581-599, October.
    • Handle: RePEc:pal:gpprii:v:35:y:2010:i:4:d:10.1057_gpp.2010.20
    DOI: 10.1057/gpp.2010.20
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    References listed on IDEAS

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    1. Patrick Bajari & Christina Dalton & Han Hong & Ahmed Khwaja, 2014. "Moral hazard, adverse selection, and health expenditures: A semiparametric analysis," RAND Journal of Economics, RAND Corporation, vol. 45(4), pages 747-763, December.
    2. Phelps, Charles E & Newhouse, Joseph P, 1974. "Coinsurance, the Price of Time, and the Demand for Medical Services," The Review of Economics and Statistics, MIT Press, vol. 56(3), pages 334-342, August.
    3. Cardon, James H & Hendel, Igal, 2001. "Asymmetric Information in Health Insurance: Evidence from the National Medical Expenditure Survey," RAND Journal of Economics, The RAND Corporation, vol. 32(3), pages 408-427, Autumn.
    4. Donna B. Gilleskie, 1998. "A Dynamic Stochastic Model of Medical Care Use and Work Absence," Econometrica, Econometric Society, vol. 66(1), pages 1-46, January.
    5. Tomas J. Philipson & Dana Goldman, 2007. "Integrated Insurance Design in the Presence of Multiple Medical Technologies," American Economic Review, American Economic Association, vol. 97(2), pages 427-432, May.
    6. A. C. Cameron & P. K. Trivedi & Frank Milne & J. Piggott, 1988. "A Microeconometric Model of the Demand for Health Care and Health Insurance in Australia," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 55(1), pages 85-106.
    7. David M. Cutler & Sarah J. Reber, 1998. "Paying for Health Insurance: The Trade-Off between Competition and Adverse Selection," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 113(2), pages 433-466.
    8. Nasreen Khan & Robert Kaestner & Swu Jane Lin, 2007. "Prescription Drug Insurance and Its Effect on Utilization and Health of the Elderly," NBER Working Papers 12848, National Bureau of Economic Research, Inc.
    9. Blomqvist, Ake, 1997. "Optimal non-linear health insurance," Journal of Health Economics, Elsevier, vol. 16(3), pages 303-321, June.
    10. Feldman, Roger & Dowd, Bryan, 1991. "Must adverse selection cause premium spirals?," Journal of Health Economics, Elsevier, vol. 10(3), pages 349-357, October.
    11. Spence, Michael & Zeckhauser, Richard, 1971. "Insurance, Information, and Individual Action," American Economic Review, American Economic Association, vol. 61(2), pages 380-387, May.
    12. Rosett, Richard N & Huang, Lien-fu, 1973. "The Effect of Health Insurance on the Demand for Medical Care," Journal of Political Economy, University of Chicago Press, vol. 81(2), pages 281-305, Part I, M.
    13. Zeckhauser, Richard, 1970. "Medical insurance: A case study of the tradeoff between risk spreading and appropriate incentives," Journal of Economic Theory, Elsevier, vol. 2(1), pages 10-26, March.
    14. Michael Rothschild & Joseph Stiglitz, 1976. "Equilibrium in Competitive Insurance Markets: An Essay on the Economics of Imperfect Information," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 90(4), pages 629-649.
    15. Keeler, Emmett B. & Rolph, John E., 1988. "The demand for episodes of treatment in the health insurance experiment," Journal of Health Economics, Elsevier, vol. 7(4), pages 337-367, December.
    16. Charles Wilson, 1980. "The Nature of Equilibrium in Markets with Adverse Selection," Bell Journal of Economics, The RAND Corporation, vol. 11(1), pages 108-130, Spring.
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