Skip to main content

Inference in the Hierarchical Credibility Model

  • Chapter
Actuarial Science

Part of the book series: The University of Western Ontario Series in Philosophy of Science ((WONS,volume 39))

  • 188 Accesses

Abstract

The problem of credibility estimation can be approached from a number of different directions (Gerber, 1982), but in most cases the authors stop with the determination of point estimators. Yet an investigator would also want some information about the error structure of these estimators. Variances of the estimators in an empirical Bayes setting for the basic model (Bühlmann and Straub, 1972) when the model variance is known are developed by Morris (1983a,b). Similar results with all variances unknown are developed by Klugman (1985b). Distributions for use in hypothesis tests are given in most linear models texts (e.g., Graybill, 1961). They are summarized for credibility models by Klugman (1985a).

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 84.99
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 109.99
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

  • Bühlmann, H. (1967), “Experience rating and credibility”.. ASTIN Bulletin 4, 199–207.

    Google Scholar 

  • Bühlmann, H., and E. Straub (1972), “Credibility for loss ratios”.. ARCH 1972.2.

    Google Scholar 

  • De Vylder, F. (1981), “Practical credibility theory with emphasis on optimal parameter estimation”.. ASTIN Bulletin 12, 115–131.

    MathSciNet  Google Scholar 

  • Gerber, H. (1982), “An unbayesed approach to credibility”.. Insurance: Mathematics and Economics 1, 271–276.

    Article  MathSciNet  MATH  Google Scholar 

  • Graybill, F. (1961), An Introduction to Linear Statistical Models, Volume 1. New York: McGraw-Hill.

    MATH  Google Scholar 

  • Hachemeister, C. (1975), “Credibility for regression models with applications to trend”. In Credibility: Theory and Applications, ed. P. M. Kahn, pp. 129–163. New York: Academic Press.

    Google Scholar 

  • Insurance Services Office (1980), “Report of the Credibility Subcommittee: Development and testing of empirical Bayesian credibility procedures for classification ratemaking”. New York: ISO.

    Google Scholar 

  • Klugman, S. (1985a), “Distributional aspects and evaluation of some variance estimators in credibility models”. ARCH 1985.1, 73–97.

    Google Scholar 

  • Klugman, S. (1985b), “Parametric empirical Bayes inference in credibility models”. Unpublished manuscript.

    Google Scholar 

  • Lindley, D., and A. Smith (1972), “Bayes estimates for the linear model”. Journal of the Royal Statistical Society, Series B 34, 1–41.

    MathSciNet  MATH  Google Scholar 

  • Morris, C. (1983a), “Parametric empirical Bayes confidence intervals”. In Proceedings of the Conference on Scientific Inference, Data Analysis, and Robustness, ed. G. E. P. Box, T. Leonard, and C.-F. Wu, pp. 25–50. New York: Academic Press.

    Google Scholar 

  • Morris, C. (1983b), “Parametric empirical Bayes inference: theory and applications”. Journal of the American Statistical Association 78, 47–55.

    Article  MathSciNet  MATH  Google Scholar 

  • Snedecor, G. W., and W. G. Cochran (1967), Statistical Methods. Ames, Iowa: Iowa State University Press.

    Google Scholar 

  • Venter, G. (1985), “Structured credibility in applications-hierarchical, multidimensional, and multivariate models”.,paper presented at the 19th Actuarial Research Conference, Berkeley, CA, to appear in ARCH.

    Google Scholar 

  • Zehnwirth, B. (1982), “Conditional linear Bayes rules for hierarchical models”. Scandinavian Actuarial Journal, 143–152.

    Google Scholar 

  • Zehnwirth, B. (1984), “Credibility: estimation of structural parameters”. In Premium Calculation in Insurance, ed. F. De Vylder, M. Goovaerts, and J. Haezendonck, pp. 347–359. Dordrecht, Holland: Reidel.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 1987 D. Reidel Publishing Company, Dordrecht, Holland

About this chapter

Cite this chapter

Klugman, S. (1987). Inference in the Hierarchical Credibility Model. In: MacNeill, I.B., Umphrey, G.J., Chan, B.S.C., Provost, S.B. (eds) Actuarial Science. The University of Western Ontario Series in Philosophy of Science, vol 39. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4796-2_7

Download citation

  • DOI: https://doi.org/10.1007/978-94-009-4796-2_7

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-8627-1

  • Online ISBN: 978-94-009-4796-2

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics