Skip to main content

Adverse Selection in Insurance Markets: A Selective Survey

  • Chapter
Contributions to Insurance Economics

Abstract

In this survey we present some of the more significant results in the literature on adverse selection in insurance markets. Section 1 discusses the monopoly model introduced by Stiglitz (1977) for the case of single period contracts and extended by many authors to the multi-period case. The introduction of multi-period contracts raises many issues that are discussed in detail: time horizon, discounting, commitment of the parties, contract renegotiation, and accident underreporting. Section 2 covers the literature on competitive contracts. The analysis becomes more complicated since insurance companies must take into account competitive pressures when they set incentives contracts. As pointed out by Rothschild and Stiglitz (1976), there is not necessarily a Cournot-Nash equilibrium in presence of adverse selection. However, market equilibrium can be sustained when principals anticipate competitive reactions to their behavior or when they adopt strategies that differ from the pure Nash strategy. Multi-period contracting is discussed. We show that different predictions on the evolution of insurer profits over time can be obtained from different assumptions concerning the sharing of information between insurers about individual’s choice of contracts and accidents experience. The roles of commitment and renegotiation between the parties to the contract are important. We then discuss how risk categorization can be used to improve resource allocation under adverse selection. Finally, the last section introduces models that simultaneously consider moral hazard and adverse selection. A short conclusion summarizes the main results in recent literature and discusses some avenues of future research.

CRSH (Canada) and FCAR (Québec) provided financial support to this study. Comments by K. J. Crocker, I. Cromb, B. Dahlby, C. Fluet, T. Nilssen, D. A. Malueg and P. Viala were very useful. We wish to thank J. Lafontaine and A. Mathieu for their valuable assistance in the preparation of the manuscript.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 169.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 219.00
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 219.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  • Abreu, D., D. Pearce and E. Stacchetti. (1990). “Toward a Theory of Discounted Repeated Games with Imperfect Monitoring,” Econometrica 58, 1041–1064.

    Article  Google Scholar 

  • Akerlof, G. A. (1970). “The Market for `Lemons’: Quality Uncertainty and the Market Mechanism,” Quarterly Journal of Economics 84, 488–500.

    Article  Google Scholar 

  • Allen, F. (1985). “Repeated Principal-Agent Relationships with Lending and Borrowing,” Economics Letters 17, 27–31.

    Article  Google Scholar 

  • Arnott, R. (1991). “Moral Hazard and Competitive Insurance Markets,” in G. Dionne (Ed.), Contributions to Insurance Economics. Boston: Kluwer Academic Publishers.

    Google Scholar 

  • Arnott, R., and J. E. Stiglitz. (1988). “Randomization with Asymmetric Information,” Rand Journal of Economics 19(3), 344–362.

    Google Scholar 

  • Arrow, K. J. (1963). “Uncertainty and the Welfare Economics of Medical Care,” American Economic Review 53, 941–969.

    Google Scholar 

  • Bolton, B. (1990) “Renegotiation and the Dynamics of Contract Design,” European Economic Review 34, 303–310.

    Article  Google Scholar 

  • Bond, E. W., and K. J. Crocker. (1991). “Smoking, Skydiving and Knitting: the Endogenous Categorization of Risks in Insurance Markets with Asymmetric Information,” Journal of Political Economy. 99, 177–200.

    Article  Google Scholar 

  • Boyer, M., G. Dionne and R. Kihlstrom. (1989). “Insurance and the Value of Publicly Available Information” in Studies in the Economics of Uncertainty: in Honor of J. Hadar, T. B. Fomby and T. K. Seo. ( eds ). Springer Verlag, 137–155.

    Google Scholar 

  • Caillaud, B., R. Guesnerie, P. Rey and J. Tirole. (1988). “Government Intervention in Production and Incentives Theory: A Review of Recent Contributions,” Rand Journal of Economics 19, 1–26.

    Article  Google Scholar 

  • Cresta, J. P. (1984). “Théories des marchés d’assurance,” Collection “Approfondissement de la connaissance économique,” Economica, Paris.

    Google Scholar 

  • Cho, I., and D. Kreps. (1987). “Signalling Games and Stable Equilibria,” Quarterly Journal of Economics CII, 179–222.

    Google Scholar 

  • Cooper, R. (1984). “On Allocative Distortions in Problems of Self-Selection,” Rand Journal of Economics 15, (4) 568–577.

    Article  Google Scholar 

  • Cooper, R., and B. Hayes. (1987). “Multi-period Insurance Contracts,” International Journal of Industrial Organization 5, 211–231.

    Article  Google Scholar 

  • Crocker, K. J., and A. Snow. (1985). “The Efficiency of Competitive Equilibria in Insurance Markets with Adverse Selection,” Journal of Public Economics 26, 207–219.

    Article  Google Scholar 

  • Crocker, K. J., and A. Snow. (1986). “The Efficiency Effects of Categorical Discrimination in the Insurance Industry,” Journal of Political Economy 94, 321–344.

    Article  Google Scholar 

  • Crocker, K. J., and A. Snow. (1990). “The Social Value of Private Information in Environments with Adverse Selection,” working paper, Penn State University.

    Google Scholar 

  • Cromb, I. J. (1990). “Competitive Insurance Markets Characterized by Asymmetric Information,” Ph. D. thesis, Queen’s University.

    Google Scholar 

  • Dahlby, B. G. (1981). “Adverse Selection and Pareto Improvements through Compulsory Insurance,” Public Choice 37, 547–558.

    Article  Google Scholar 

  • Dahlby, B. G. (1983). “Adverse Selection and Statistical Discrimination. An Analysis of Canadian Automobile Insurance,” Journal of Public Economics 20, 121–130.

    Article  Google Scholar 

  • Dahlby, B. G. (1987). “Monopoly Versus Competition in an Insurance Market with Adverse Selection,” Journal of Risk and Insurance LIV, 325–331.

    Google Scholar 

  • Dahlby, B. G. (1991). “Testing for Assymmetric Information in Canadian Automobile Insurance,” Contributions to Insurance Economics, G. Dionne ( Ed.) Boston: Kluwer Academic Publishers.

    Google Scholar 

  • D’Arcy, S. P., and N. Doherty. (1990). “Adverse Selection, Private Information and Lowballing in Insurance Markets,” Journal of Business 63, 145–164.

    Article  Google Scholar 

  • Dasgupta, P., and E. Maskin. (1986). “The Existence of Equilibrium in Discontinuous Economic Games, II: Applications,” Review of Economic Studies 53(1), 27–41.

    Google Scholar 

  • Dewatripont, M. (1989). “Renegotiation and Information Revelation over Time: The Case of Optimal Labour Contracts,” Quarterly Journal of Economics 104(3), 589–619.

    Google Scholar 

  • Dionne, G. (1983). “Adverse Selection and Repeated Insurance Contracts,” Geneva Papers on Risk and Insurance 8, 316–333.

    Google Scholar 

  • Dionne, G., and P. Lasserre. (1985). “Adverse Selection, Repeated Insurance Contracts and Announcement Strategy,” Review of Economic Studies 52, 719–723.

    Article  Google Scholar 

  • Dionne, G., and P. Lasserre. (1987). “Adverse Selection and Finite-Horizon Insurance Contracts.” European Economic Review 31, (4), 843–862.

    Article  Google Scholar 

  • Dionne, G., and P. Lasserre. (1988). “Dealing with Moral Hazard and Adverse Selection Simultaneously,” working paper, Economics Department, Université de Montréal.

    Google Scholar 

  • Dionne, G., and N. Doherty. (1991). “Adverse Selection, Commitment and Renegotiation with Application to Insurance Markets,” Mimeo, University of Pennsylvania.

    Google Scholar 

  • Dionne, G., and C. Vanasse. (1988). “Automobile Insurance Ratemaking in the Presence of Asymmetrical Information,” working paper 603, CRT, Université de Montréal. Journal of Applied Econometrics (forthcoming).

    Google Scholar 

  • Doherty, N. A. (1990). “Adverse Selection, Screening and the Value of Information in Insurance Markets,” Mimeo, University of Pennsylvania.

    Google Scholar 

  • Eisen, R. (1989). “Problems of Equilibria in Insurance Markets with Asymmetric Information,” in Risk, Information and Insurance, H. Loubergé (Ed.) Norwell, MA: Kluwer Academic Publishers.

    Google Scholar 

  • Fluet, C. (1991). “Probationary Periods and Time-Dependent Deductibles in Insurance Markets with Adverse Selection,” in Contributions to Insurance Economics, G. Dionne (Ed.). Norwell, MA: Kluwer Academic Publishers.

    Google Scholar 

  • Freixas, X., R. Guesnerie and J. Tirole. (1985). “Planning Under Incomplete Information and the Ratchet Effect,” Review of Economic Studies 52, 173–191.

    Article  Google Scholar 

  • Fudenberg, D., B. Holmstrom and P. Milgrom. (1986). “Short-term Contracts and Long-term Agency Relationships,” Mimeo, University of California, Berkeley.

    Google Scholar 

  • Gal, S., and M. Landsberger. (1988). “On `Small Sample’ Properties of Experience Rating Insurance Contracts,” Quarterly Journal of Economics CIII, 233–243.

    Google Scholar 

  • Garella, P. (1989). “Adverse Selection and the Middleman,” Economica 56, 395–399.

    Article  Google Scholar 

  • Grossman, H. I. (1979). “Adverse Selection, Dissembling, and Competitive Equilibrium,” Bell Journal of Economics 10, 336–343.

    Article  Google Scholar 

  • Guesnerie, R., P., Picard, and P. Rey. (1988). “Adverse Selection and Moral Hazard with Risk Neutral Agents,” European Economic Review 33, 807–823.

    Article  Google Scholar 

  • Harris, M., and R. Townsend. (1981). “Resource Allocation under Asymmetric Information,” Econometrica 49, 33–64.

    Article  Google Scholar 

  • Hart, O. D., and J. Tirole. (1988). “Contract Renegotiation and Coasian Dynamics,” Review of Economic Studies 55, 509–540.

    Article  Google Scholar 

  • Hellwig, M. F. (1986). “A Sequential Approach to Modelling Competition in Markets with Adverse Selection,” Mimeo, University of Bonn.

    Google Scholar 

  • Hellwig, M. F. (1987). “Some Recent Developments in the Theory of Competition in Markets with Adverse Selection,” European Economic Review 31, 319–325.

    Article  Google Scholar 

  • Hellwig, M. F. (1988). “A Note on the Specification of Interfirm Communication in Insurance Markets with Adverse Selection,” Journal of Economic Theory 46, 154–163.

    Article  Google Scholar 

  • Henriet, D., and J. C. Rochet. (1986). “La logique des systèmes bonus-malus en assurance automobile: une approche théorique,” Annales d’Économie et de Statistique, 133–152.

    Google Scholar 

  • Hey, J. (1985). “No Claim Bonus?” The Geneva Papers on Risk and Insurance 10, 209–228.

    Google Scholar 

  • Hosios, A. J., and M. Peters. (1989). “Repeated Insurance Contracts with Adverse Selection and Limited Commitment,” Quarterly Journal of Economics CIV (2), 229–253.

    Google Scholar 

  • Hoy, M. (1982). “Categorizing Risks in the Insurance Industry,” Quarterly Journal of Economics 97, 321–336.

    Article  Google Scholar 

  • Hoy, M. (1989). “The Value of Screening Mechanisms Under Alternative Insurance Possibilities,” Journal of Public Economics 39, 177–206.

    Article  Google Scholar 

  • Jaynes, G. D. (1978). “Equilibria in Monopolistically Competitive Insurance Markets,” Journal of Economic Theory 19, 394–422.

    Article  Google Scholar 

  • Karni, E. (1991). “Optimal Insurance: A Nonexpected Utility Analysis,” in G. Dionne (Ed.), Contributions to Insurance Economics. Boston: Kluwer Academic Publishers.

    Google Scholar 

  • Kreps, D. (1989). “Out-of-Equilibrium Beliefs and Out-of-Equilibrium Behaviour,” in The Economics of Information, Missing Markets and Games ( F. Hahn, ed.), Oxford: Clarendon Press, 7–45.

    Google Scholar 

  • Kreps, D., and R. Wilson. (1982). “Sequential Equilibria,” Econometrica 50, 863–894.

    Article  Google Scholar 

  • Kunreuther, H., and M. Pauly. (1985). “Market Equilibrium with Private Knowl- edge: An Insurance Example,” Journal of Public Economics 26, 269–288.

    Article  Google Scholar 

  • Laffont, J. J., and J. Tirole. (1986). “Using Cost Observation to Regulate Firms,” Journal of Political Economy 94, 614–641.

    Article  Google Scholar 

  • Laffont, J.-J., and J. Tirole. (1987). “Comparative Statics of the Optimal Dynamic Incentive Contracts,” European Economic Review 31, 901–926.

    Article  Google Scholar 

  • Laffont, J.-J., and J. Tirole. (1990). “Adverse Selection and Renegotiation in Procurement,” Review of Economic Studies 57, 597–625.

    Article  Google Scholar 

  • Lemaire, J. (1985). Automobile Insurance: Actuarial Models. Boston: KluwerNighoff Publishing.

    Book  Google Scholar 

  • Machina, M. J. (1987). “Choice Under Uncertainty: Problems Solved and Unsolved,” Journal of Economics Perspective 1, 121–154.

    Article  Google Scholar 

  • Malueg, D. A. (1986). “Efficient Outcomes in a Repeated Agency Model Without Discounting,” Journal of Mathematical Economics 15, 217–230.

    Article  Google Scholar 

  • Malueg, D. A. (1988). “Repeated Insurance Contracts with Differential Learning,” Review of Economic Studies LV, 177–181.

    Google Scholar 

  • Miyazaki, H. (1977). “The Rate Race and Internal Labour Markets,” Bell Journal of Economics 8, 394–418.

    Article  Google Scholar 

  • Nilssen, T. (1990). “Consumer Lock-in with Asymmetric Information,” working paper, Norvegian School of Economics and Business.

    Google Scholar 

  • Palfrey, T. R., and C. S. Spatt. (1985). “Repeated Insurance Contracts and Learning,” Rand Journal of Economics 16(3), 356–367.

    Google Scholar 

  • Pauly, M. V. (1974). “Overinsurance and the Public Provision of Insurance: The Roles of Moral Hazard and Adverse Selection,” Quarterly Journal of Economics 88, 44–62.

    Article  Google Scholar 

  • Picard, P. (1987). “On the Design of Incentives Schemes Under Moral Hazard and Adverse Selection,” Journal of Public Economics 33, 305–331.

    Article  Google Scholar 

  • Radner, R. (1981). “Monitoring Cooperative Agreements in a Repeated Principal-Agent Relationship,” Econometrica 49, 1127–1148.

    Article  Google Scholar 

  • Radner, R. (1985). “Repeated Principal-Agent Games with Discounting,” Econometrica 53, 1173–1198.

    Article  Google Scholar 

  • Rea, S. A. (1987). “The Market Response to the Elimination of Sex-Based Annuities,” Southern Economic Journal 54, 55–63.

    Article  Google Scholar 

  • Rea, S. A. (1991). “Insurance Classifications and Social Welfare,” in Contributions to Insurance Economics, C. Dionne (Ed.). Boston: Kluwer Academic Publishers.

    Google Scholar 

  • Riley, J. G. (1979a). “Informational Equilibrium,” Econometrica 47, 331–359. Riley, J. G. (1979b). “Non-Cooperative Equilibrium and Markets Signalling,” American Economic Review May, 303–307.

    Google Scholar 

  • Riley, J. G. (1983). “Adverse Selection and Statistical Discrimination: Further Comments,” Journal of Public Economics 20, 131–137.

    Article  Google Scholar 

  • Riley, J. G. (1985). “Competition with Hidden Knowledge,” Journal of Political Economy 93, 958–976.

    Article  Google Scholar 

  • Rothschild, M., and J. Stiglitz. (1976). “Equilibrium in Competitive Insurance Markets: An Essay on the Economics of Imperfect Information,” Quarterly Journal of Economics 90, 629–650.

    Article  Google Scholar 

  • Rubinstein, A., and M. Yaari. (1983). “Repeated Insurance Contract and Moral Hazard,” Journal of Economic Theory 30, 74–97.

    Article  Google Scholar 

  • Sabourian, H. (1989). “Repeated Games: A Survey,” in the Economics of Information, Missing Markets and Games (F. Hahn, Ed.). Oxford: Clarendon Press, 62–105.

    Google Scholar 

  • Spence, M. (1973). “Job Market Signalling,” Quarterly Journal of Economics 87, 355–374.

    Article  Google Scholar 

  • Spence, M. (1978). “Product Differentiation and Performance in Insurance Markets,” Journal of Public Economics 10, 427–447.

    Article  Google Scholar 

  • Stiglitz, J. (1977). “Monopoly, Nonlinear Pricing, and Imperfect Information: The Insurance Market,” Review of Economic Studies 44, 407–430.

    Article  Google Scholar 

  • Stiglitz, J., and A. Weiss. (1984). “Sorting Out the Differences Between Screening and Signalling Models,” working paper, Princeton University.

    Google Scholar 

  • Townsend, R. (1982). “Optimal Multiperiod Contracts and the Gain from Enduring Relationships under Private Information,” Journal of Political Economy 90, 1166–1185.

    Article  Google Scholar 

  • Whinston, M. (1983). “Moral Hazard, Adverse Selection and the Optimal Provision of Social Insurance,” Journal of Public Economics 22, 49–71.

    Article  Google Scholar 

  • Wilson, C. (1977). “A Model of Insurance Markets with Incomplete Information,” Journal of Economic Theory 16, 167–207.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 1992 Springer Science+Business Media New York

About this chapter

Cite this chapter

Dionne, G., Doherty, N. (1992). Adverse Selection in Insurance Markets: A Selective Survey. In: Dionne, G. (eds) Contributions to Insurance Economics. Huebner International Series on Risk, Insurance and Economic Security, vol 13. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1168-5_4

Download citation

  • DOI: https://doi.org/10.1007/978-94-017-1168-5_4

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-90-481-5788-4

  • Online ISBN: 978-94-017-1168-5

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics