The study of modelling problems of GLM for outstanding claims reserving based on prediction error of reserve Online publication date: Mon, 09-Nov-2015
by Chun Yan; Yiwei Qiu; Liangyu Zhang; Wei Liu
International Journal of Reasoning-based Intelligent Systems (IJRIS), Vol. 7, No. 3/4, 2015
Abstract: Stochastic methods for outstanding claims reserving based on generalised linear model (GLM) framework are the hotspot of actuarial theory. Based on the GLM framework, the mean square error of prediction of reserves could be calculated. Focused on GLM for outstanding claims reserving, this paper analysed two problems. One is the distribution's assumption chosen of the response variable; the other is the over-parameterisation in models. First, a weighted function was introduced to judge the effect of the model fitted under different distributions. Second, referring to Cape-Cod method, a three-parameter GLM was built by introducing more claims information to reduce the number of parameters in the predictor structure. At last, examples were given to prove the effectiveness of these methods.
Online publication date: Mon, 09-Nov-2015
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