May 2, 2024
Mahmoud Afshari

Mahmoud Afshari

Academic Rank: Associate professor
Address: Mahmoud Afshari, Associate Professor. Department of Statistics, College of science Persian Gulf University, 7516913798, Iran E-mail:afshar.5050@gmail.com or afshar@pgu.ac.ir TEL:00989177125766
Degree: Ph.D in statistics
Phone: 07731223328
Faculty: Faculty of Intelligent Systems and Data Science

Research

Title A novel XGamma extension: applications and actuarial risk analysis under the reinsurance data
Type Article
Keywords
Cullen–Frey plot · Maximum product spacing · Mean excess loss function · Risk exposure · Risk indicators · Value-at-risk · Xgamma model
Journal Sao Paulo Journal of Mathematical Sciences
DOI 10.1007/s40863-023-00373-9
Researchers Morad Alizadeh (First researcher) , Mahmoud Afshari (Second researcher) , vahid ranjbar (Third researcher) , Faton Merovci (Fourth researcher) , Haitham Yousof (Fifth researcher)

Abstract

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.