An Empirical Rating Actuarial Model with Claim Size Following Lognormal Distribution in Automobile Insurance
YU Jia-min1,HAO Xu-dong2
(1. School of International Finance University,Shanghai Finance & Insurance,Shanghai 201209,China; 2.Antai College of Economics & Management ,Shanghai Jiaotong University,Shanghai 200052,China)
Abstract：By constructing the structure function of claim size lognormal distribution parameter y, an optimal estimator of the policy’s future claim size was elicited.An empirical rating actuarial model with allowance for claim frequency and claim severity was presented. Thus, the pricing on automobile insurance is more equitable and reasonable. Furthermore, a typical rating actuarial model fit for Chinese automobile insurance reality was put forward，preliminary to the promotion of rates allowance for claim severity.
郁佳敏，郝旭东. 索赔额服从对数正态分布的车险经验费率精算模型[J]. 上海交通大学学报（自然版）, .
YU Jia-min1,HAO Xu-dong2. An Empirical Rating Actuarial Model with Claim Size Following Lognormal Distribution in Automobile Insurance. J. Shanghai Jiaotong Univ.(Sci.) , 2008, 42(11): 1836-1838.
