26 آبان 1403
مراد عليزاده

مراد علیزاده

مرتبه علمی: استادیار
نشانی: دانشکده مهندسی سیستم های هوشمند و علوم داده - گروه آمار
تحصیلات: دکترای تخصصی / امار ریاضی
تلفن: 0
دانشکده: دانشکده مهندسی سیستم های هوشمند و علوم داده

مشخصات پژوهش

عنوان A novel XGamma extension: applications and actuarial risk analysis under the reinsurance data
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
Cullen–Frey plot · Maximum product spacing · Mean excess loss function · Risk exposure · Risk indicators · Value-at-risk · Xgamma model
مجله Sao Paulo Journal of Mathematical Sciences
شناسه DOI 10.1007/s40863-023-00373-9
پژوهشگران مراد علیزاده (نفر اول) ، محمود افشاری (نفر دوم) ، وحید رنجبر (نفر سوم) ، فاتون میروسی (نفر چهارم) ، هیثم یوسف (نفر پنجم)

چکیده

Continuous distributions can be used to characterize risk exposure successfully. It is preferable to use a numerical value, or at the very least, a limited selection of numbers, to show the degree of exposure to a particular threat. These risk exposure figures, often known as major risk indicators, are indisputably a specific model’s output. The risk exposure in the reinsurance revenues data is defined in this study using five important indicators. We create a new XGamma extension specifically for this use. The maximum-likelihood method, maximum product spacing, and least square estimation were used to estimate the parameters. Under a certain set of circumstances and controls, a Monte Carlo simulation study is carried out. Five crucial risk indicators, including value-at-risk, tail-value-at-risk, tail variance, tail mean-variance, and mean excess loss function, were also used to explain the risk exposure in the reinsurance revenue data. These statistical measurements were created for the new model that was provided.