IDEAS home Printed from https://ideas.repec.org/
MyIDEAS: Login to save this paper or follow this series

Deductible or Co-Insurance: Which is the Better Insurance Contract under Adverse Selection?

  • Michael Breuer

    ()

    (Socioeconomic Institute, University of Zurich)

Registered author(s):

    The standard solution to adverse selection is the separating equilibrium introduced by Rothschild and Stiglitz. Usually, the Rothschild-Stiglitz argument is developed in a model that allows for two states of the world only. In this paper adverse selection is dis-cussed for continuous loss distributions. This gives rise to the new problem of finding the proper form of an insurance contract to impose partial insurance of the low risks. This paper contributes to the discussion on optimal insurance. It analyzes two basic forms of insurance contracts: A contract with a deductible and a contract imposing a positive co-insurance rate. Since high risks can always self-reveal themselves as high risks and buy the optimal insurance contract at high risks’ premiums the Pareto-superior insurance contract is the one that leaves the low risks with higher expected utility while deterring high risks from joining the contract that is designed for low risks. The deductible contract turns out to be superior if premiums contain a sufficiently high loading.

    If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

    File URL: http://www.soi.uzh.ch/research/wp/2004/wp0401.pdf
    File Function: Revised version, 2004
    Download Restriction: no

    Paper provided by Socioeconomic Institute - University of Zurich in its series SOI - Working Papers with number 0401.

    as
    in new window

    Length: 19 pages
    Date of creation: Jan 2004
    Date of revision: Oct 2004
    Handle: RePEc:soz:wpaper:0401
    Contact details of provider: Postal: Rämistrasse 71, CH-8006 Zürich
    Phone: +41-1-634 21 37
    Fax: +41-1-634 49 82
    Web page: http://www.soi.uzh.ch/
    Email:


    More information through EDIRC

    References listed on IDEAS
    Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

    as in new window
    1. Zava Aydemir & Stefan Buehler, 2002. "Estimating Vertical Foreclosure in U.S. Gasoline Supply," SOI - Working Papers 0212, Socioeconomic Institute - University of Zurich.
    2. Buehler, Stefan & Schmutzler, Armin & Benz, Men-Andri, 2004. "Infrastructure quality in deregulated industries: is there an underinvestment problem?," International Journal of Industrial Organization, Elsevier, vol. 22(2), pages 253-267, February.
    3. Borek, Thomas & Bühler, Stefan & Schmutzler, Armin, 2003. "Weddings with Uncertain Prospects - Mergers under Asymmetric Information," CEPR Discussion Papers 3839, C.E.P.R. Discussion Papers.
    4. Yves Schneider & Peter Zweifel, 2002. "How Much Internalization of Nuclear Risk Through Liability Insurance?," SOI - Working Papers 0211, Socioeconomic Institute - University of Zurich.
    5. Andreas Polk & Armin Schmutzler, 2003. "Lobbying against Environmental Regulation vs. Lobbying for Loopholes," SOI - Working Papers 0301, Socioeconomic Institute - University of Zurich.
    6. Bühler, Stefan & Schmutzler, Armin, 2003. "Who Integrates?," CEPR Discussion Papers 4066, C.E.P.R. Discussion Papers.
    7. Daniel Halbheer & Sarah Niggli & Armin Schmutzler, 2003. "What does it take to sell Environmental Policy? An empirical Analysis of Referendum Data," SOI - Working Papers 0304, Socioeconomic Institute - University of Zurich, revised Apr 2005.
    8. Rainer Winkelmann, 2002. "Subjektive Daten in der empirischen Wirtschaftsforschung: Probleme und Perspektiven," SOI - Working Papers 0207, Socioeconomic Institute - University of Zurich, revised Jul 2002.
    9. Andreas Polk, 2002. "Multilateral Agreement On Investments (MAI) - A Critical Assessment From an Industrial Economics Point of View," SOI - Working Papers 0201, Socioeconomic Institute - University of Zurich, revised Feb 2002.
    Full references (including those not matched with items on IDEAS)

    This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

    When requesting a correction, please mention this item's handle: RePEc:soz:wpaper:0401. 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: (Marita Kieser)

    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 references are entirely missing, you can add them using this form.

    If the full references list an item that is present in RePEc, but the system did not link 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 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.

    This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.