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Full insurance, asymmetric information and genetic testing

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  • José Penalva
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    Abstract

    This paper extends previous resuls on optimal insurance trading in the presence of a stock market that allows continuous asset trading and substantial personal heterogeneity, and applies those results in a context of asymmetric information with references to the role of genetic testing in insurance markets. We find a novel and surprising result under symmetric information: agents may optimally prefer to purchase full insurance despite the presence of unfairly priced insurance contracts, and other assets which are correlated with insurance. Asymmetric information has a Hirschleifer-type effect which can be solved by suspending insurance trading. Nevertheless, agents can attain their first best allocations, which suggests that the practice of restricting insurance not to be contingent on genetic tests can be efficient.

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    Bibliographic Info

    Paper provided by Department of Economics and Business, Universitat Pompeu Fabra in its series Economics Working Papers with number 461.

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    Date of creation: Nov 2000
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    Handle: RePEc:upf:upfgen:461

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    Web page: http://www.econ.upf.edu/

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    Keywords: Insurance; asymmetric information; genetic testing; portfolio choice;

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    9. Aase, Knut K., 1993. "Continuous trading in an exchange economy under discontinuous dynamics: A resolution of the equity premium puzzle," Scandinavian Journal of Management, Elsevier, vol. 9(Supplemen), pages S3-S28.
    10. Hindy, Ayman & Huang, Chi-fu, 1993. "Optimal Consumption and Portfolio Rules with Durability and Local Substitution," Econometrica, Econometric Society, vol. 61(1), pages 85-121, January.
    11. Duffie, J Darrell & Huang, Chi-fu, 1985. "Implementing Arrow-Debreu Equilibria by Continuous Trading of Few Long-lived Securities," Econometrica, Econometric Society, vol. 53(6), pages 1337-56, November.
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