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Does competitive pricing cause market breakdown under extreme adverse selection?

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  • Mailath, George J.
  • Nöldeke, Georg

Abstract

We study market breakdown in a finance context under extreme adverse selection with and without competitive pricing. Adverse selection is extreme if for any price there are informed agent types with whom uninformed agents prefer not to trade. Market breakdown occurs when no trade is the only equilibrium outcome. We present a necessary and sufficient condition for market breakdown. If the condition holds, then trade is not viable. If the condition fails, then trade can occur under competitive pricing. There are environments in which the condition holds and others in which it fails.

Suggested Citation

  • Mailath, George J. & Nöldeke, Georg, 2008. "Does competitive pricing cause market breakdown under extreme adverse selection?," Journal of Economic Theory, Elsevier, vol. 140(1), pages 97-125, May.
  • Handle: RePEc:eee:jetheo:v:140:y:2008:i:1:p:97-125
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    Cited by:

    1. Mailath, George J. & von Thadden, Ernst-Ludwig, 2013. "Incentive compatibility and differentiability: New results and classic applications," Journal of Economic Theory, Elsevier, vol. 148(5), pages 1841-1861.
    2. Adriani, Fabrizio & Deidda, Luca G., 2009. "Price signaling and the strategic benefits of price rigidities," Games and Economic Behavior, Elsevier, vol. 67(2), pages 335-350, November.
    3. Attar, Andrea & Mariotti, Thomas & Salanié, François, 2017. "Private Information and Insurance Rejections: A comment," IDEI Working Papers 868, Institut d'Économie Industrielle (IDEI), Toulouse.
    4. Nathaniel Hendren, 2013. "Private Information and Insurance Rejections," Econometrica, Econometric Society, vol. 81(5), pages 1713-1762, September.
    5. Daniel McFadden & Carlos Noton & Pau Olivella, "undated". "Remedies for Sick Insurance," Working Papers 620, Barcelona Graduate School of Economics.
    6. Attar, Andrea & Mariotti, Thomas & Salanié, François, 2017. "Entry-Proofness and Market Breakdown under Adverse Selection," TSE Working Papers 17-788, Toulouse School of Economics (TSE), revised Oct 2017.

    More about this item

    JEL classification:

    • D40 - Microeconomics - - Market Structure, Pricing, and Design - - - General
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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