Interval Estimation of the Credibility Factor

Abstract

In this article, we present a Bayesian approach for calculating the credibility factor. Unlike existing methods, a Bayesian approach provides the decision maker with a useful credible interval based on the posterior distribution and the posterior summary statistics of the credibility factor, while most credibility models only provide a point estimate. A simulated example is used to demonstrate the advantages and disadvantages of the Bayesian credibility factor proposed in this article.

Volume
2
Issue
1
Page
0071-0084
Year
2008
Keywords
Credibility, interval estimation
Categories
Actuarial Applications and Methodologies
Ratemaking
Experience Rating
Financial and Statistical Methods
Simulation
Monte Carlo Valuation
Financial and Statistical Methods
Credibility
Publications
Variance
Authors
Ashis Gangopadhyay
Wu-Chyuan Gau
Zhongxian Han