IDEAS home Printed from https://ideas.repec.org/p/cwl/cwldpp/1346.html
   My bibliography  Save this paper

Competitive Pooling: Rothschild-Stiglitz Reconsidered

Author

Abstract

We build a model of competitive pooling, which incorporates adverse selection and signalling into general equilibrium. Pools are characterized by their quantity limits on contributions. Households signal their reliability by choosing which pool to join. In equilibrium, pools with lower quantity limits sell for a higher price, even though each household's deliveries are the same at all pools. The Rothschild-Stiglitz model of insurance is included as a special case. We show that by recasting their hybrid oligopolistic-competitive story into our perfectly competitive framework, their separating equilibrium always exists (even when they say it doesn't) and is unique.

Suggested Citation

  • Pradeep Dubey & John Geanakoplos, 2001. "Competitive Pooling: Rothschild-Stiglitz Reconsidered," Cowles Foundation Discussion Papers 1346, Cowles Foundation for Research in Economics, Yale University.
    • Handle: RePEc:cwl:cwldpp:1346
    as

    Download full text from publisher

    File URL: https://cowles.yale.edu/sites/default/files/files/pub/d13/d1346.pdf
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. Pradeep Dubey & John Geanakoplos, 2001. "Insurance Contracts Designed by Competitive Pooling," Cowles Foundation Discussion Papers 1315, Cowles Foundation for Research in Economics, Yale University.
    2. George A. Akerlof, 1970. "The Market for "Lemons": Quality Uncertainty and the Market Mechanism," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 84(3), pages 488-500.
    3. Pradeep Dubey & John Geanakoplos & Martin Shubik, 2005. "Default and Punishment in General Equilibrium," Econometrica, Econometric Society, vol. 73(1), pages 1-37, January.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Ken Urai & Akihiko Yoshimachi & Kohei Shiozawa, 2013. "General Equilibrium Model for an Asymmetric Information Economy," Discussion Papers in Economics and Business 13-27, Osaka University, Graduate School of Economics.
    2. Bisin, A. & Geanakoplos, J.D. & Gottardi, P. & Minelli, E. & Polemarchakis, H., 2011. "Markets and contracts," Journal of Mathematical Economics, Elsevier, vol. 47(3), pages 279-288.
    3. Dasol Kim & Luke Olson & Toan Phan, 2024. "Bank Competition and Strategic Adaptation to Climate Change," Working Paper 24-06, Federal Reserve Bank of Richmond.
    4. Roozbeh Hosseini, 2015. "Adverse Selection in the Annuity Market and the Role for Social Security," Journal of Political Economy, University of Chicago Press, vol. 123(4), pages 941-984.
    5. Ken Urai & Akihiko Yoshimachi & Kohei Shiozawa, 2013. "General Equilibrium Model for an Asymmetric Information Economy without Delivery Upper Bounds," Discussion Papers in Economics and Business 13-27-Rev.2, Osaka University, Graduate School of Economics, revised Mar 2017.
    6. Joao Correia-da-Silva, 2009. "Uncertain delivery in markets for lemons," FEP Working Papers 310, Universidade do Porto, Faculdade de Economia do Porto.
    7. Acharya, Viral & Bisin, Alberto, 2014. "Counterparty risk externality: Centralized versus over-the-counter markets," Journal of Economic Theory, Elsevier, vol. 149(C), pages 153-182.
    8. Davoodalhosseini, Seyed Mohammadreza, 2019. "Constrained efficiency with adverse selection and directed search," Journal of Economic Theory, Elsevier, vol. 183(C), pages 568-593.
    9. Nuno Gouveia, 2004. "General equilibrium with asymmetric information and default penalties," Cahiers de la Maison des Sciences Economiques b05051, Université Panthéon-Sorbonne (Paris 1), revised Jan 2005.
    10. Matt Darst & Ehraz Refayet, 2019. "Mixed Signals: Investment Distortions with Adverse Selection," Finance and Economics Discussion Series 2019-044, Board of Governors of the Federal Reserve System (U.S.).
    11. Ken Urai & Akihiko Yoshimachi & Kohei Shiozawa, 2013. "General Equilibrium Model for an Asymmetric Information Economy with Endogenous Resale Upperbounds," Discussion Papers in Economics and Business 13-27-Rev., Osaka University, Graduate School of Economics, revised Jul 2015.
    12. Correia-da-Silva, João, 2012. "General equilibrium in markets for lemons," Journal of Mathematical Economics, Elsevier, vol. 48(3), pages 187-195.
    13. Nuno Gouveia, 2005. "General equilibrium with asymmetric information and default penalties," Post-Print halshs-00195526, HAL.
    14. Assaf Razin & Efraim Sadka & Chi-Wa Yuen, 1999. "An Information-Based Model of Foreign Direct Investment: The Gains from Trade Revisited," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 6(4), pages 579-596, November.
    15. Tisdell, Clem, 2014. "Information Technology's Impacts on Productivity, Welfare and Social Change: Second Version," Economic Theory, Applications and Issues Working Papers 195701, University of Queensland, School of Economics.
    16. Konduru, Srinivasa & Kalaitzandonakes, Nicholas G. & Magnier, Alexandre, 2009. "GMO Testing Strategies and Implications for Trade: A Game Theoretic Approach," 2009 Annual Meeting, July 26-28, 2009, Milwaukee, Wisconsin 49594, Agricultural and Applied Economics Association.
    17. König, Philipp J. & Pothier, David, 2018. "Safe but fragile: Information acquisition, sponsor support and shadow bank runs," Discussion Papers 15/2018, Deutsche Bundesbank.
    18. Andrea Attar & Thomas Mariotti & François Salanié, 2021. "Entry-Proofness and Discriminatory Pricing under Adverse Selection," American Economic Review, American Economic Association, vol. 111(8), pages 2623-2659, August.
    19. Reynolds, Travis & Kolodinsky, Jane & Murray, Byron, 2012. "Consumer preferences and willingness to pay for compact fluorescent lighting: Policy implications for energy efficiency promotion in Saint Lucia," Energy Policy, Elsevier, vol. 41(C), pages 712-722.
    20. Ginger Zhe Jin & Andrew Kato & John A. List, 2010. "That’S News To Me! Information Revelation In Professional Certification Markets," Economic Inquiry, Western Economic Association International, vol. 48(1), pages 104-122, January.

    More about this item

    Keywords

    Competitive pooling; insurance; adverse selection; signalling; refined equilibrium; separating equilibrium;
    All these keywords.

    JEL classification:

    • D4 - Microeconomics - - Market Structure, Pricing, and Design
    • D5 - Microeconomics - - General Equilibrium and Disequilibrium
    • D41 - Microeconomics - - Market Structure, Pricing, and Design - - - Perfect Competition
    • D52 - Microeconomics - - General Equilibrium and Disequilibrium - - - Incomplete Markets
    • 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:cwl:cwldpp:1346. See general information about how to correct material in RePEc.

    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 bibliographic 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.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Brittany Ladd (email available below). General contact details of provider: https://edirc.repec.org/data/cowleus.html .

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

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.