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A demand‐induced overtreatment model with heterogeneous experts

Author

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  • Bertrand Crettez
  • Régis Deloche
  • Marie‐Hélène Jeanneret‐Crettez

Abstract

We propose an original game‐theoretic demand‐induced supply model of overtreatment with heterogeneous experts. We show that experts, whatever their abilities, must give the treatment if customers expect them to do so. We show how launching awareness campaigns (on the prudent use of treatment) disseminating information to both the general public and prescribers may, by undermining customers' expectations, reduce overtreatment. Introducing a diagnostic test may have the same effect, but not if its use is costly, especially for good experts. We rely on our model to account for antibiotics overprescription.

Suggested Citation

  • Bertrand Crettez & Régis Deloche & Marie‐Hélène Jeanneret‐Crettez, 2020. "A demand‐induced overtreatment model with heterogeneous experts," Journal of Public Economic Theory, Association for Public Economic Theory, vol. 22(5), pages 1713-1733, September.
    • Handle: RePEc:bla:jpbect:v:22:y:2020:i:5:p:1713-1733
    DOI: 10.1111/jpet.12465
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    References listed on IDEAS

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    1. Balafoutas, Loukas & Kerschbamer, Rudolf, 2020. "Credence goods in the literature: What the past fifteen years have taught us about fraud, incentives, and the role of institutions," Journal of Behavioral and Experimental Finance, Elsevier, vol. 26(C).
    2. Yuk-fai Fong, 2005. "When Do Experts Cheat and Whom Do They Target?," RAND Journal of Economics, The RAND Corporation, vol. 36(1), pages 113-130, Spring.
    3. Fong, Yuk-fai & Liu, Ting & Wright, Donald J., 2014. "On the role of verifiability and commitment in credence goods markets," International Journal of Industrial Organization, Elsevier, vol. 37(C), pages 118-129.
    4. Ting Liu, 2011. "Credence Goods Markets With Conscientious And Selfish Experts," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 52(1), pages 227-244, February.
    5. David Bardey & Denis Gromb & David Martimort & Jérôme Pouyet, 2020. "Controlling Sellers Who Provide Advice: Regulation and Competition," Journal of Industrial Economics, Wiley Blackwell, vol. 68(3), pages 409-444, September.
    6. Sebastian Panthöfer, 2022. "Do doctors prescribe antibiotics out of fear of malpractice?," Journal of Empirical Legal Studies, John Wiley & Sons, vol. 19(2), pages 340-381, June.
    7. Marie Allard & Pierre Thomas Léger & Lise Rochaix, 2009. "Provider Competition in a Dynamic Setting," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 18(2), pages 457-486, June.
    8. Kris De Jaegher & Marc Jegers, 2001. "The physician–patient relationship as a game of strategic information transmission," Health Economics, John Wiley & Sons, Ltd., vol. 10(7), pages 651-668, October.
    9. Francesca Barigozzi & Rosella Levaggi, 2010. "Emotional decision-makers and anomalous attitudes towards information," Journal of Risk and Uncertainty, Springer, vol. 40(3), pages 255-280, June.
    10. Ingela Alger & François Salanié, 2006. "A Theory of Fraud and Overtreatment in Experts Markets," Journal of Economics & Management Strategy, Wiley Blackwell, vol. 15(4), pages 853-881, December.
    11. Joachim Heinzel, 2019. "Credence Goods Markets with Heterogeneous Experts," Working Papers CIE 118, Paderborn University, CIE Center for International Economics.
    12. Beck, Adrian & Kerschbamer, Rudolf & Qiu, Jianying & Sutter, Matthias, 2013. "Shaping beliefs in experimental markets for expert services: Guilt aversion and the impact of promises and money-burning options," Games and Economic Behavior, Elsevier, vol. 81(C), pages 145-164.
    13. Darby, Michael R & Karni, Edi, 1973. "Free Competition and the Optimal Amount of Fraud," Journal of Law and Economics, University of Chicago Press, vol. 16(1), pages 67-88, April.
    14. Rudolf Kerschbamer & Matthias Sutter & Uwe Dulleck, 2017. "How Social Preferences Shape Incentives in (Experimental) Markets for Credence Goods," Economic Journal, Royal Economic Society, vol. 127(600), pages 393-416, March.
    15. Fang Liu & Alexander Rasch & Marco Alexander Schwarz & Christian Waibel, 2020. "The Role of Diagnostic Ability in Markets for Expert Services," CESifo Working Paper Series 8704, CESifo.
    16. Schneider, Tim & Bizer, Kilian, 2017. "Effects of qualification in expert markets with price competition and endogenous verifiability," University of Göttingen Working Papers in Economics 317, University of Goettingen, Department of Economics.
    17. In-Koo Cho & David M. Kreps, 1987. "Signaling Games and Stable Equilibria," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 102(2), pages 179-221.
    18. Rudolf Kerschbamer & Matthias Sutter & Uwe Dulleck, 2017. "How Social Preferences Shape Incentives in (Experimental) Markets for Credence Goods," Economic Journal, Royal Economic Society, vol. 127(600), pages 393-416, March.
    19. Dranove, David, 1988. "Demand Inducement and the Physician/Patient Relationship," Economic Inquiry, Western Economic Association International, vol. 26(2), pages 281-298, April.
    20. Wolfgang Pesendorfer & Asher Wolinsky, 2003. "Second Opinions and Price Competition: Inefficiency in the Market for Expert Advice," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 70(2), pages 417-437.
    21. Barigozzi, Francesca & Levaggi, Rosella, 2008. "Emotions in physician agency," Health Policy, Elsevier, vol. 88(1), pages 1-14, October.
    22. Paul Calcott, 1999. "Demand inducement as cheap talk," Health Economics, John Wiley & Sons, Ltd., vol. 8(8), pages 721-733, December.
    23. Joachim Heinzel, 2019. "Credence Goods Markets with Fair and Opportunistic Experts," Working Papers CIE 119, Paderborn University, CIE Center for International Economics.
    24. Pitchik, Carolyn & Schotter, Andrew, 1987. "Honesty in a Model of Strategic Information Transmission," American Economic Review, American Economic Association, vol. 77(5), pages 1032-1036, December.
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    1. Fang Liu & Alexander Rasch & Marco Alexander Schwarz & Christian Waibel, 2020. "The Role of Diagnostic Ability in Markets for Expert Services," CESifo Working Paper Series 8704, CESifo.

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