Shapiro–Wilk test for skew normal distributions based on data transformations

E González-Estrada, W Cosmes - Journal of Statistical …, 2019 - Taylor & Francis
ABSTRACT A probability property that connects the skew normal (SN) distribution with the
normal distribution is used for proposing a goodness-of-fit test for the composite null …

[HTML][HTML] A selective overview of skew-elliptical and related distributions and of their applications

C Adcock, A Azzalini - Symmetry, 2020 - mdpi.com
Within the context of flexible parametric families of distributions, much work has been
dedicated in recent years to the theme of skew-symmetric distributions, or symmetry …

Data breaches: Goodness of fit, pricing, and risk measurement

M Eling, N Loperfido - Insurance: mathematics and economics, 2017 - Elsevier
Some research on cyber risk has been conducted in the field of information technology, but
virtually no research exists in the actuarial domain. As a first step toward a more profound …

[HTML][HTML] The heavy-tailed exponential distribution: risk measures, estimation, and application to actuarial data

AZ Afify, AM Gemeay, NA Ibrahim - Mathematics, 2020 - mdpi.com
Modeling insurance data using heavy-tailed distributions is of great interest for actuaries.
Probability distributions present a description of risk exposure, where the level of exposure …

New methods to define heavy-tailed distributions with applications to insurance data

Z Ahmad, E Mahmoudi, GG Hamedani… - Journal of Taibah …, 2020 - Taylor & Francis
Heavy-tailed distributions play an important role in modelling data in actuarial and financial
sciences. In this article, nine new methods are suggested to define new distributions suitable …

The Arcsine Exponentiated‐X Family: Validation and Insurance Application

W He, Z Ahmad, AZ Afify, H Goual - Complexity, 2020 - Wiley Online Library
In this paper, we propose a family of heavy tailed distributions, by incorporating a
trigonometric function called the arcsine exponentiated‐X family of distributions. Based on …

On generalized log-Moyal distribution: a new heavy tailed size distribution

D Bhati, S Ravi - Insurance: Mathematics and Economics, 2018 - Elsevier
A new class of distributions, the generalized log-Moyal, suitable for modelling heavy tailed
data is proposed in this article. This class exhibits desirable properties relevant to actuarial …

Compound unimodal distributions for insurance losses

A Punzo, L Bagnato, A Maruotti - Insurance: Mathematics and Economics, 2018 - Elsevier
The distribution of insurance losses has a positive support and is often unimodal hump-
shaped, right-skewed and with heavy tails. In this work, we introduce a 3-parameter …

Kurtosis-based projection pursuit for outlier detection in financial time series

N Loperfido - The European Journal of Finance, 2020 - Taylor & Francis
Outlier detection in financial time series is made difficult by serial dependence, volatility
clustering and heavy tails. Projections achieving maximal kurtosis proved to be useful for …

Solving high-order portfolios via successive convex approximation algorithms

R Zhou, DP Palomar - IEEE Transactions on Signal Processing, 2021 - ieeexplore.ieee.org
The first moment and second central moments of the portfolio return, aka mean and
variance, have been widely employed to assess the expected profit and risk of the portfolio …