Results 1 to 10 of about 594 (68)

Abel-Gontcharoff polynomials, parking trajectories and ruin probabilities

open access: yesDependence Modeling, 2023
The central mathematical tool discussed is a non-standard family of polynomials, univariate and bivariate, called Abel-Goncharoff polynomials. First, we briefly summarize the main properties of this family of polynomials obtained in the previous work ...
Lefèvre Claude, Picard Philippe
doaj   +1 more source

Set-Valued Weighted Value at Risk and Its Computation

open access: yesFrontiers in Physics, 2020
In this paper, we propose a new class of set-valued coherent risk measures called the set-valued weighted value at risk. Firstly, the “regulator” version is independent of other market scenarios.
Yichuan Dong   +5 more
doaj   +1 more source

Relations between ageing and dependence for exchangeable lifetimes with an extension for the IFRA/DFRA property

open access: yesDependence Modeling, 2020
We first review an approach that had been developed in the past years to introduce concepts of “bivariate ageing” for exchangeable lifetimes and to analyze mutual relations among stochastic dependence, univariate ageing, and bivariate ageing.
Nappo Giovanna, Spizzichino Fabio
doaj   +1 more source

Asymptotic and numerical solutions for diffusion models for compounded risk reserves with dividend payments

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 14, Page 721-739, 2004., 2004
We study a family of diffusion models for compounded risk reserves which account for the investment income earned and for the inflation experienced on claim amounts. We are interested in the models in which the dividend payments are paid from the risk reserves.
S. Shao, C. L. Chang
wiley   +1 more source

Large portfolio risk management and optimal portfolio allocation with dynamic elliptical copulas

open access: yesDependence Modeling, 2018
Previous research has focused on the importance of modeling the multivariate distribution for optimal portfolio allocation and active risk management. However, existing dynamic models are not easily applied to high-dimensional problems due to the curse ...
Jin Xisong, Lehnert Thorsten
doaj   +1 more source

Asymptotic solutions of diffusion models for risk reserves

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 35, Page 2221-2239, 2003., 2003
We study a family of diffusion models for risk reserves which account for the investment income earned and for the inflation experienced on claim amounts. After we defined the process of the conditional probability of ruin over finite time and imposed the appropriate boundary conditions, classical results from the theory of diffusion processes turn the
S. Shao
wiley   +1 more source

Conditional value‐at‐risk bounds for compound Poisson risks and a normal approximation

open access: yesJournal of Applied Mathematics, Volume 2003, Issue 3, Page 141-153, 2003., 2003
A considerable number of equivalent formulas defining conditional value‐at‐risk and expected shortfall are gathered together. Then we present a simple method to bound the conditional value‐at‐risk of compound Poisson loss distributions under incomplete information about its severity distribution, which is assumed to have a known finite range, mean, and
Werner Hürlimann
wiley   +1 more source

Structural change in the link between oil and the European stock market: implications for risk management

open access: yesDependence Modeling, 2019
The relationship between the European stock market and the crude oil depends on the significance of the different industries in the European economy. The literature points to a structural change after the 2008 crisis without getting into details of which
Ferreiro Javier Ojea
doaj   +1 more source

Another approach to the evaluation of a certain multivariate compound distribution

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
In this work, we consider the multivariate aggregate model introduced in [11], model that takes into account the case when different types of claims affect in the same time an insurance portfolio under some specific assumptions related to the number of ...
Robe-Voinea Elena-Gratiela   +1 more
doaj   +1 more source

Bounding Stochastic Dependence, Complete Mixability of Matrices, and Multidimensional Bottleneck Assignment Problems [PDF]

open access: yes, 2014
We call a matrix completely mixable if the entries in its columns can be permuted so that all row sums are equal. If it is not completely mixable, we want to determine the smallest maximal and largest minimal row sum attainable.
Haus, Utz-Uwe
core   +1 more source

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