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Insurance in a Market for Credence Goods

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  • Kai Sülzle
  • Achim Wambach

Abstract

We study the impact of insurance on the amount of fraud in a physician-patient relationship. In a market for credence goods, where prices are regulated by an authority, physicians act as experts. Due to their informational advantage, physicians have an incentive to cheat by inducing inappropriate treatment levels. It is shown that a higher coinsurance rate may lead to either less fraud in the market and a lower probability of patients searching for second opinions or more fraud and more searches. We also show that a higher coinsurance rate corresponds with a higher level of physicians specialising.

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File URL: http://www.cesifo-group.de/portal/page/portal/DocBase_Content/WP/WP-CESifo_Working_Papers/wp-cesifo-2002/wp-cesifo-2002-02/cesifo_wp677.pdf
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Bibliographic Info

Paper provided by CESifo Group Munich in its series CESifo Working Paper Series with number 677.

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Date of creation: 2002
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Handle: RePEc:ces:ceswps:_677

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Related research

Keywords: insurance fraud; credence goods; supplier induced demand;

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References

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  1. Lacker, J.M., 1989. "Optimal Contracts Under Costly State Falsification," Purdue University Economics Working Papers 956, Purdue University, Department of Economics.
  2. Fagart, M.-C. & Picard, P., 1998. "Optimal Insurance Under Random Auditing," Papers 9808, Paris X - Nanterre, U.F.R. de Sc. Ec. Gest. Maths Infor..
  3. Asher Wolinsky, 1993. "Competition in a Market for Informed Experts' Services," RAND Journal of Economics, The RAND Corporation, vol. 24(3), pages 380-398, Autumn.
  4. Winand Emons, 1995. "Credence Goods Monopolists," Diskussionsschriften dp9501, Universitaet Bern, Departement Volkswirtschaft.
  5. Mookherjee, Dilip & Png, Ivan, 1989. "Optimal Auditing, Insurance, and Redistribution," The Quarterly Journal of Economics, MIT Press, vol. 104(2), pages 399-415, May.
  6. Robert Townsend, 1979. "Optimal contracts and competitive markets with costly state verification," Staff Report 45, Federal Reserve Bank of Minneapolis.
  7. Keith J. Crocker & John Morgan, 1998. "Is Honesty the Best Policy? Curtailing Insurance Fraud through Optimal Incentive Contracts," Journal of Political Economy, University of Chicago Press, vol. 106(2), pages 355-375, April.
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Citations

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Cited by:
  1. Georges Dionne, 2012. "The Empirical Measure of Information Problems with Emphasis on Insurance Fraud and Dynamic Data," Cahiers de recherche 1233, CIRPEE.
  2. Bonroy, O. & Lemarié, S. & Tropéano, J.P., 2010. "Credence goods, experts and risk aversion," Working Papers 201005, Grenoble Applied Economics Laboratory (GAEL).
  3. Loukas Balafoutas & Rudolf Kerschbamer & Matthias Sutter, 2013. "Second-Degree Moral Hazard in a Real-World Credence Goods Market," CESifo Working Paper Series 4458, CESifo Group Munich.
  4. Dominik Erharter, 2012. "Credence goods markets, distributional preferences and the role of institutions," Working Papers 2012-11, Faculty of Economics and Statistics, University of Innsbruck.
  5. Hyndman, Kyle & Ozerturk, Saltuk, 2011. "Consumer information in a market for expert services," Journal of Economic Behavior & Organization, Elsevier, vol. 80(3), pages 628-640.
  6. Uwe Dulleck & Rudolf Kerschbamer, 2005. "Experts vs. discounters: consumer free riding and experts withholding advice in markets for credence goods," Economics working papers 2005-09, Department of Economics, Johannes Kepler University Linz, Austria.
  7. Alexander Rasch & Christian Waibel, 2013. "What drives fraud in a credence goods market? Evidence from a field study," CER-ETH Economics working paper series 13/179, CER-ETH - Center of Economic Research (CER-ETH) at ETH Zurich.
  8. Nell, Martin & Schiller, Jörg, 2002. "Erklärungsansätze für vertragswidriges Verhalten von Versicherungsnehmern aus Sicht der ökonomischen Theorie," Working Papers on Risk and Insurance 7, University of Hamburg, Institute for Risk and Insurance.
  9. Wanda Mimra & Alexander Rasch & Christian Waibel, 2014. "Second Opinions in Markets for Expert Services: Experimental Evidence," CER-ETH Economics working paper series 14/192, CER-ETH - Center of Economic Research (CER-ETH) at ETH Zurich.
  10. Winand Emons, 2010. "Incentive Compatible Reimbursement Schemes for Physicians," Diskussionsschriften dp1001, Universitaet Bern, Departement Volkswirtschaft.
  11. repec:cgr:cgsser:03-07 is not listed on IDEAS
  12. Vincze, János, 2010. "Miért és mitől védjük a fogyasztókat?. Aszimmetrikus információ és/vagy korlátozott racionalitás
    [Asymmetric information and/or bounded rationality: why are consumers protected and from
    ," Közgazdasági Szemle (Economic Review - monthly of the Hungarian Academy of Sciences), Közgazdasági Szemle Alapítvány (Economic Review Foundation), vol. 0(9), pages 725-752.
  13. Jennifer Brown & Dylan B. Minor, 2012. "Misconduct in Credence Good Markets," NBER Working Papers 18608, National Bureau of Economic Research, Inc.
  14. Dulleck, Uwe & Kerschbamer, Rudolf, 2005. "Experts vs Discounters: Competition and Market Unravelling When Consumers Do Not Know What they Need," CEPR Discussion Papers 5242, C.E.P.R. Discussion Papers.

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