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First‐Best Equilibrium in Insurance Markets With Transaction Costs and Heterogeneity

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  • Jerry W. Liu
  • Mark J. Browne

Abstract

We investigate extensions of the classic Rothschild and Stiglitz (1976) (RS) model of adverse selection under asymmetric information. In RS, low‐risk customers are worse off owing to an externality created by high‐risk buyers in the market. We find critical changes in insurance buyers' behavior under the joint assumptions of transaction costs and buyer heterogeneity with respect to either risk aversion or wealth. Combining transaction costs and heterogeneity, we find a separating equilibrium in which neither high‐risk nor low‐risk individuals are penalized due to information asymmetry.

Suggested Citation

  • Jerry W. Liu & Mark J. Browne, 2007. "First‐Best Equilibrium in Insurance Markets With Transaction Costs and Heterogeneity," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 74(4), pages 739-760, December.
    • Handle: RePEc:bla:jrinsu:v:74:y:2007:i:4:p:739-760
    DOI: 10.1111/j.1539-6975.2007.00232.x
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    Cited by:

    1. James A. Ligon & Paul D. Thistle, 2008. "Adverse Selection With Frequency and Severity Risk: Alternative Risk‐Sharing Provisions," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 75(4), pages 825-846, December.
    2. Yann Braouezec, 2015. "Public versus Private Insurance System with (and without) Transaction Costs: Optimal Segmentation Policy of an Informed monopolistPublic versus Private Insurance System with (and without) Transaction ," Working Papers 2013-ECO-23, IESEG School of Management, revised May 2014.
    3. Rachel J. Huang & Arthur Snow & Larry Y. Tzeng, 2017. "Advantageous Selection in Insurance Markets with Compound Risk," The Geneva Papers on Risk and Insurance Theory, Springer;International Association for the Study of Insurance Economics (The Geneva Association), vol. 42(2), pages 171-192, September.
    4. hector chade, 2016. "The Market for Lemons: Costly Insurance, Coverage Denials, and Pooling," 2016 Meeting Papers 1097, Society for Economic Dynamics.
    5. Chade, Hector & Schlee, Edward E., 2020. "Insurance as a lemons market: Coverage denials and pooling," Journal of Economic Theory, Elsevier, vol. 189(C).
    6. Ramsay, Colin M. & Oguledo, Victor I. & Pathak, Priya, 2013. "Pricing high-risk and low-risk insurance contracts with incomplete information and production costs," Insurance: Mathematics and Economics, Elsevier, vol. 52(3), pages 606-614.
    7. Huang, Rachel J. & Jeng, Vivian & Wang, Cheng-Wei & Yue, Jack C., 2021. "Does size and book-to-market contain intangible information about managerial incentives? Learning from corporate D&O insurance purchase," Pacific-Basin Finance Journal, Elsevier, vol. 68(C).
    8. Alexander, Corinne & Ivanic, Rasto & Rosch, Stephanie & Tyner, Wallace & Wu, Steven Y. & Yoder, Joshua R., 2012. "Contract theory and implications for perennial energy crop contracting," Energy Economics, Elsevier, vol. 34(4), pages 970-979.
    9. Leon Chen & Puneet Jaiprakash, 2017. "An Insurance Market Simulation With Both Adverse and Advantageous Selection," Risk Management and Insurance Review, American Risk and Insurance Association, vol. 20(1), pages 133-146, March.

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