A new family of heavy tailed distributions with an application to the heavy tailed insurance loss data

被引:39
作者
Ahmad, Zubair [1 ]
Mahmoudi, Eisa [1 ]
Dey, Sanku [2 ]
机构
[1] Yazd Univ, Dept Stat, Yazd, Iran
[2] St Anthonys Coll, Dept Stat, Shillong, Meghalaya, India
关键词
Actuarial measures; Estimation; Heavy tailed distributions; Insurance losses; Monte Carlo simulation; Weibull distribution; RISK MODEL; CLAIMS;
D O I
10.1080/03610918.2020.1741623
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
Heavy tailed distributions play very significant role in the study of actuarial and financial risk management data but the probability distributions proposed to model such data are scanty. Actuaries often search for new and appropriate statistical models to address data related to financial risk problems. In this work, we propose a new family of heavy tailed distributions. Some basic properties of this new family of heavy tailed distributions are obtained. A special sub-model of the proposed family, called a new heavy tailed Weibull model is considered in detail. The maximum likelihood estimators of the model parameters are obtained. A Monte Carlo simulation study is carried out to evaluate the performance of these estimators. Furthermore, some actuarial measures such as value at risk and tail value at risk are calculated. A simulation study based on these actuarial measures is done. Finally, an application of the proposed model to a heavy tailed insurance loss data set is presented.
引用
收藏
页码:4372 / 4395
页数:24
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