Benha University

محمد سويلم السيد حامد

مدرس

كلية التجارة الاحصاءات والرياضيات والتأمينات

The Statistical Distributional Validation under a Novel Generalized Gamma Distribution with Value-at-Risk Analysis for the Historical Claims, Censored and Uncensored Real-life Applications

Pakistan Journal of Statistics and Operation Research (PJSOR) • 2025
العودة
معلومات البحث
المؤلفون Yousof, H. M., Ali, E. I. A., Aidi, K., Butt, N. S., Saber, M. M., Al-Nefaie, A. H., Aljadani, A., Mansour, M. M., Hamed, M. S., & Ibrahim, M.
الكلمات المفتاحية Characterizations; Distributional Validation; Nikulin-Rao-Robson; Risk Assessment; Value-at-risk; Statistical Modeling.
المجلة العلمية Pakistan Journal of Statistics and Operation Research (PJSOR)
الناشر Pakistan Journal of Statistics and Operation Research (PJSOR)
المجلد 21
العدد 1
الصفحات 51-69
publication.type International
رابط البحث Open Link
المواد المرفقة Not Available
الملخص
This study introduces and examines a new probability distribution, presenting various characterizations. Key financial risk measures, including the value-at-risk (VaR), tail-value-at-risk (TVaR), also referred to as conditional tail expectation or conditional value-at-risk (CVaR), tail variance (TV), tail mean-variance (TMV), and mean excess loss (MExL) function are evaluated using maximum likelihood estimation, ordinary least squares, weighted least squares, and the Anderson-Darling estimation methods. These methods are applied for actuarial analysis in
both a simulation study and an insurance claims data application. For validation of the distribution using complete data, the widely recognized Nikulin-Rao-Robson statistic is utilized and assessed through simulations and three real data sets. Two uncensored real-life data sets for failure times and remission times are used in uncensored validation. Additionally, for censored data validation, a modified version of the Nikulin-Rao-Robson statistic is proposed and evaluated through extensive simulations and three censored real data sets.
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