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Insurance Contracts Designed by Competitive Pooling

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  • P. Dubey

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  • J. Geanakoplos

Abstract

We build a model of competitive pooling and show how insurance contracts emerge in equilibrium, designed by the invisible hand of perfect competition. When pools are exclusive, we obtain a unique separating equilibrium. When pools are not exclusive but seniority is recognized, we obtain a different unique equilibrium: the pivotal primary-secondary equilibrium. Here reliable and unreliable households take out a common primary insurance up to its maximum limit, and then unreliable households take out further secondary insurance.

Suggested Citation

  • P. Dubey & J. Geanakoplos, 2001. "Insurance Contracts Designed by Competitive Pooling," Department of Economics Working Papers 01-09, Stony Brook University, Department of Economics.
  • Handle: RePEc:nys:sunysb:01-09
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    File URL: http://www.stonybrook.edu/commcms/economics/research/papers/2001/01-09.pdf
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    References listed on IDEAS

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    1. David K. Levine, 1989. "Efficiency and the Value of Money," Review of Economic Studies, Oxford University Press, vol. 56(1), pages 77-88.
    2. Geanakoplos, John & Mas-Colell, Andreu, 1989. "Real indeterminacy with financial assets," Journal of Economic Theory, Elsevier, pages 22-38.
    3. Jean-Michel Grandmont & Yves Younes, 1973. "On the Efficiency of a Monetary Equilibrium," Review of Economic Studies, Oxford University Press, pages 149-165.
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    5. Paul A. Samuelson, 1958. "An Exact Consumption-Loan Model of Interest with or without the Social Contrivance of Money," Journal of Political Economy, University of Chicago Press, vol. 66, pages 467-467.
    6. Heller, Walter Perrin, 1974. "The holding of money balances in general equilibrium," Journal of Economic Theory, Elsevier, vol. 7(1), pages 93-108, January.
    7. Bewley, Truman, 1983. "A Difficulty with the Optimum Quantity of Money," Econometrica, Econometric Society, vol. 51(5), pages 1485-1504, September.
    8. Dubey, Pradeep & Shapley, Lloyd S., 1994. "Noncooperative general exchange with a continuum of traders: Two models," Journal of Mathematical Economics, Elsevier, vol. 23(3), pages 253-293, May.
    9. Balasko, Yves & Cass, David, 1989. "The Structure of Financial Equilibrium with Exogenous Yields: The Case of Incomplete Markets," Econometrica, Econometric Society, vol. 57(1), pages 135-162, January.
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    12. Bryce Hool, 1976. "Money, Expectations and the Existence of a Temporary Equilibrium," Review of Economic Studies, Oxford University Press, vol. 43(3), pages 439-445.
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    14. Lucas, Robert Jr., 1990. "Liquidity and interest rates," Journal of Economic Theory, Elsevier, vol. 50(2), pages 237-264, April.
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    Cited by:

    1. Masters, Adrian, 2011. "Commitment, advertising and efficiency of two-sided investment in competitive search equilibrium," Journal of Economic Dynamics and Control, Elsevier, pages 1017-1031.
    2. 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.

    More about this item

    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

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