IDEAS home Printed from https://ideas.repec.org/p/tse/wpaper/28620.html
   My bibliography  Save this paper

Multiple Contracting in Insurance Markets

Author

Listed:
  • Attar, Andrea
  • Mariotti, Thomas
  • Salanié, François

Abstract

We study insurance markets in which privately informed consumers can purchase coverage from several insurers. Under adverse selection, multiple contracting severely restricts feasible trades. Indeed, only one budget-balanced allocation is implementable by an entry-proof tariff, and each layer of coverage must be fairly priced given the consumer types who purchase it. This allocation is the unique equilibrium outcome of a game in which cross-subsidies between contracts are prohibited. Equilibrium contracts exhibit quantity discounts and negative correlation between risk and coverage. Public intervention should target insurers’ strategic behavior, while consumers can be left free to choose their preferred amount of coverage.

Suggested Citation

  • Attar, Andrea & Mariotti, Thomas & Salanié, François, 2014. "Multiple Contracting in Insurance Markets," TSE Working Papers 14-532, Toulouse School of Economics (TSE), revised Sep 2016.
  • Handle: RePEc:tse:wpaper:28620
    as

    Download full text from publisher

    File URL: http://www.tse-fr.eu/sites/default/files/TSE/documents/doc/by/mariotti/ams3-15.pdf
    File Function: Full text
    Download Restriction: no

    Other versions of this item:

    References listed on IDEAS

    as
    1. Mas-Colell,Andreu, 1990. "The Theory of General Economic Equilibrium," Cambridge Books, Cambridge University Press, number 9780521388702, January.
    2. Alberto Bisin & Danilo Guaitoli, 2004. "Moral Hazard and Nonexclusive Contracts," RAND Journal of Economics, The RAND Corporation, vol. 35(2), pages 306-328, Summer.
    3. Robert J. Aumann & Roberto Serrano, 2008. "An Economic Index of Riskiness," Journal of Political Economy, University of Chicago Press, vol. 116(5), pages 810-836, October.
    4. Armantier, Olivier & Ghysels, Eric & Sarkar, Asani & Shrader, Jeffrey, 2015. "Discount window stigma during the 2007–2008 financial crisis," Journal of Financial Economics, Elsevier, vol. 118(2), pages 317-335.
    5. Amy Finkelstein & James Poterba, 2004. "Adverse Selection in Insurance Markets: Policyholder Evidence from the U.K. Annuity Market," Journal of Political Economy, University of Chicago Press, vol. 112(1), pages 183-208, February.
    6. Douglas Gale, 1996. "Equilibria and Pareto optima of markets with adverse selection (*)," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 7(2), pages 207-235.
    7. Andrea Attar & Thomas Mariotti & François Salanié, 2014. "On Competitive Nonlinear Pricing," CEIS Research Paper 314, Tor Vergata University, CEIS, revised 18 Apr 2014.
    8. He, Daifeng, 2009. "The life insurance market: Asymmetric information revisited," Journal of Public Economics, Elsevier, vol. 93(9-10), pages 1090-1097, October.
    9. Andrea Attar & Thomas Mariotti & François Salanié, 2011. "Nonexclusive Competition in the Market for Lemons," Econometrica, Econometric Society, vol. 79(6), pages 1869-1918, November.
    10. Alberto Bisin & Piero Gottardi, 2003. "Competitive Markets for Non-Exclusive Contracts with Adverse Selection: the Role of Entry Fees," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 6(2), pages 313-338, April.
    11. Prescott, Edward C & Townsend, Robert M, 1984. "Pareto Optima and Competitive Equilibria with Adverse Selection and Moral Hazard," Econometrica, Econometric Society, vol. 52(1), pages 21-45, January.
    12. Laurence Ales & Pricila Maziero, "undated". "Non-exclusive Dynamic Contracts, Competition, and the Limits of Insurance," GSIA Working Papers 2010-E59, Carnegie Mellon University, Tepper School of Business.
    13. Marie-Cécile Fagart, 1996. "Concurrence en contrats, anti-sélection et structure d'information," Annals of Economics and Statistics, GENES, issue 43, pages 1-27.
    14. 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.
    15. Attar, Andrea & Mariotti, Thomas & Salanié, François, 2014. "Nonexclusive competition under adverse selection," Theoretical Economics, Econometric Society, vol. 9(1), January.
    16. Tomas Philipson & John Cawley, 1999. "An Empirical Examination of Information Barriers to Trade in Insurance," American Economic Review, American Economic Association, vol. 89(4), pages 827-846, September.
    17. Nathaniel Hendren, 2014. "Unravelling vs Unravelling: A Memo on Competitive Equilibriums and Trade in Insurance Markets," The Geneva Risk and Insurance Review, Palgrave Macmillan;International Association for the Study of Insurance Economics (The Geneva Association), vol. 39(2), pages 176-183, September.
    18. Chade, Hector & Schlee, Edward, 2012. "Optimal insurance with adverse selection," Theoretical Economics, Econometric Society, vol. 7(3), September.
    19. Omar Paccagnella & Vincenzo Rebba & Guglielmo Weber, 2013. "VOLUNTARY PRIVATE HEALTH INSURANCE AMONG THE OVER 50s IN EUROPE," Health Economics, John Wiley & Sons, Ltd., vol. 22(3), pages 289-315, March.
    20. Wilson, Charles, 1977. "A model of insurance markets with incomplete information," Journal of Economic Theory, Elsevier, vol. 16(2), pages 167-207, December.
    21. Bertrand Villeneuve, 2003. "Mandatory Pensions and the Intensity of Adverse Selection in Life Insurance Markets," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 70(3), pages 527-548.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Andrea Attar & Thomas Mariotti & François Salanié, 2014. "On Competitive Nonlinear Pricing," CEIS Research Paper 314, Tor Vergata University, CEIS, revised 18 Apr 2014.
    2. Bannier, Christina E. & Feess, Eberhard & Packham, Natalie, 2014. "Incentive schemes, private information and the double-edged role of competition for agents," CFS Working Paper Series 475, Center for Financial Studies (CFS).
    3. Joseph E. Stiglitz & Jungyoll Yun & Andrew Kosenko, 2017. "Equilibrium in a Competitive Insurance Market Under Adverse Selection with Endogenous Information," NBER Working Papers 23556, National Bureau of Economic Research, Inc.
    4. Attar, Andrea & Mariotti, Thomas & Salanié, François, 2017. "Private Information and Insurance Rejections: A comment," IDEI Working Papers 868, Institut d'Économie Industrielle (IDEI), Toulouse.
    5. Pierre C. Boyer & Hubert Kempf, 2017. "Regulatory arbitrage and the e ciency of banking regulation," Working Papers 2017-06, Center for Research in Economics and Statistics.
    6. Attar, Andrea & Mariotti, Thomas & Salanié, François, 2017. "Entry-Proofness and Market Breakdown under Adverse Selection," TSE Working Papers 17-788, Toulouse School of Economics (TSE), revised Oct 2017.

    More about this item

    Keywords

    Insurance Markets; Multiple Contracting; Adverse Selection;

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D86 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Economics of Contract Law

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:tse:wpaper:28620. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (). General contact details of provider: http://edirc.repec.org/data/tsetofr.html .

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service hosted by the Research Division of the Federal Reserve Bank of St. Louis . RePEc uses bibliographic data supplied by the respective publishers.