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Cream skimming, dregs skimming, and pooling : on the dynamics of competitive screening

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  • Lund,D.
  • Nilssen,T.

    (University of Oslo, Department of Economics)

Abstract

We discuss the existence of a pooling equilibrium in a two-period model of an insurance market with asymmetric information. We solve the model numerically. We pay particular attention to the reasons for non-existence in cases where no pooling equilibrium exists. In addition to the phenomenon of cream skimming emphasized in earlier literature, we here point to the importance of the opposite: dregs skimming, whereby high-risk consumers are profitably detracted from the candidate pooling contract.
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Suggested Citation

  • Lund,D. & Nilssen,T., 2000. "Cream skimming, dregs skimming, and pooling : on the dynamics of competitive screening," Memorandum 39/2000, Oslo University, Department of Economics.
    • Handle: RePEc:hhs:osloec:2000_039
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    File URL: http://www.sv.uio.no/econ/english/research/unpublished-works/working-papers/pdf-files/2000/Memo-39-2000.pdf
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    References listed on IDEAS

    as
    1. Dionne, Georges & Doherty, Neil A, 1994. "Adverse Selection, Commitment, and Renegotiation: Extension to and Evidence from Insurance Markets," Journal of Political Economy, University of Chicago Press, vol. 102(2), pages 209-235, April.
    2. Parigi, Bruno M., 1994. "Self selection in a dynamic credit model," European Journal of Political Economy, Elsevier, vol. 10(3), pages 571-590, October.
    3. Szpiro, George G, 1986. "Measuring Risk Aversion: An Alternative Approach," The Review of Economics and Statistics, MIT Press, vol. 68(1), pages 156-159, February.
    4. Asheim, Geir B. & Nilssen, Tore, 1996. "Non-discriminating renegotiation in a competitive insurance market," European Economic Review, Elsevier, vol. 40(9), pages 1717-1736, December.
    5. Nilssen, Tore, 2000. "Consumer lock-in with asymmetric information," International Journal of Industrial Organization, Elsevier, vol. 18(4), pages 641-666, May.
    6. Joseph E. Stiglitz, 1977. "Monopoly, Non-linear Pricing and Imperfect Information: The Insurance Market," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 44(3), pages 407-430.
    7. Michael Rothschild & Joseph Stiglitz, 1976. "Equilibrium in Competitive Insurance Markets: An Essay on the Economics of Imperfect Information," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 90(4), pages 629-649.
    8. Jean-Jacques Laffont & Jean Tirole, 1993. "A Theory of Incentives in Procurement and Regulation," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262121743, April.
    9. Tirole, Jean, 1986. "Procurement and Renegotiation," Journal of Political Economy, University of Chicago Press, vol. 94(2), pages 235-259, April.
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    Cited by:

    1. Jobst, Andreas A., 2002. "The Pricing puzzle: The default term structure of collateralised loan obligations," CFS Working Paper Series 2002/14, Center for Financial Studies (CFS).
    2. Andreas Jobst, 2002. "Loan Securitisation: Default Term Structure and Asset Pricing Based on Loss Prioritisation," FMG Discussion Papers dp422, Financial Markets Group.

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    More about this item

    JEL classification:

    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • G22 - Financial Economics - - Financial Institutions and Services - - - Insurance; Insurance Companies; Actuarial Studies
    • L14 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Transactional Relationships; Contracts and Reputation

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