Risk measure estimation under two component mixture models with trimmed data

S. A. Abu Bakar and S. Nadarajah

Journal of Applied Statistics, 2019, vol. 46, issue 5, 835-852

Abstract: Several two component mixture models from the transformed gamma and transformed beta families are developed to assess risk performance. Their common statistical properties are given and applications to real insurance loss data are shown. A new data trimming approach for parameter estimation is proposed using the maximum likelihood estimation method. Assessment with respect to Value-at-Risk and Conditional Tail Expectation risk measures are presented. Of all the models examined, the mixture of inverse transformed gamma-Burr distributions consistently provides good results in terms of goodness-of-fit and risk estimation in the context of the Danish fire loss data.

Date: 2019
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DOI: 10.1080/02664763.2018.1517146

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