IDEAS home Printed from https://ideas.repec.org/a/spr/joecth/v22y2003i3p689-698.html
   My bibliography  Save this article

Medical insurance with rank-dependent utility

Author

Listed:
  • Matthew J. Ryan
  • Rhema Vaithianathan

Abstract

A well-known result in the medical insurance literature is that zero co-insurance is never second-best for insurance contracts subject to moral hazard. We replace the usual expected utility assumption with a version of the rank-dependent utility (RDU) model that has greater experimental support. When consumers exhibit such preferences, we show that zero co-insurance may in fact be optimal, especially for low-risk consumers. Indeed, it is even possible that the first-best and second-best contracts are identical. In this case, there is no “market failure”, despite the informational asymmetry. We argue that these RDU results are in better accord with the empirical evidence from US health insurance markets. Copyright Springer-Verlag Berlin Heidelberg 2003

Suggested Citation

  • Matthew J. Ryan & Rhema Vaithianathan, 2003. "Medical insurance with rank-dependent utility," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 22(3), pages 689-698, October.
  • Handle: RePEc:spr:joecth:v:22:y:2003:i:3:p:689-698
    DOI: 10.1007/s00199-002-0336-1
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1007/s00199-002-0336-1
    Download Restriction: Access to full text is restricted to subscribers.

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

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


    Cited by:

    1. James Cox & Vjollca Sadiraj & Bodo Vogt & Utteeyo Dasgupta, 2013. "Is there a plausible theory for decision under risk? A dual calibration critique," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 54(2), pages 305-333, October.
    2. Azomahou, Theophile & Soete, Luc & Diene, Bity & Diene, Mbaye, 2012. "Optimal health investment with separable and non-separable preferences," MERIT Working Papers 047, United Nations University - Maastricht Economic and Social Research Institute on Innovation and Technology (MERIT).

    More about this item

    Keywords

    Keywords and Phrases: Health insurance; Rank-dependent expected utility; Co-insurance; Inverse-S transformation.; JEL Classification Numbers: D81; D82; G22.;

    JEL classification:

    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

    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:spr:joecth:v:22:y:2003:i:3:p:689-698. 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: (Sonal Shukla) or (Rebekah McClure). General contact details of provider: http://www.springer.com .

    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.

    We have no references for this item. You can help adding them by using 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.