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Competitive Screening in Insurance Markets with Endogenous Labor Supply

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  • Nick Netzer
  • Florian Scheuer

Abstract

We examine equilibria in competitive insurance markets when individuals take unobservable labor supply decisions. Precautionary labor motives intro-duce countervailing incentives in the insurance market, and equilibria with positive profits can occur even in the standard case in which individuals exogenously differ in risk only. We then extend the model to allow for both privately known risks and labor productivities. This endogenously introduces two-dimensional heterogeneity in the insurance market since precautionary labor effects lead to differences in income and hence risk aversion. Under these circumstances, separating and pooling equilibria exist, which generally differ from those with exogenous two-dimensional heterogeneity considered by the existing literature. Notably, in contrast to standard screening models, profits may be increasing with insurance coverage, and the correlation between risk and coverage can be zero or negative in equilibrium, a phenomenon frequently observed in empirical studies.

Suggested Citation

  • Nick Netzer & Florian Scheuer, 2006. "Competitive Screening in Insurance Markets with Endogenous Labor Supply," Discussion Papers of DIW Berlin 614, DIW Berlin, German Institute for Economic Research.
  • Handle: RePEc:diw:diwwpp:dp614
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    File URL: http://www.diw.de/documents/publikationen/73/diw_01.c.44632.de/dp614.pdf
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    References listed on IDEAS

    as
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    More about this item

    Keywords

    Insurance markets; adverse selection; precautionary labor;

    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
    • J22 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Time Allocation and Labor Supply

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