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Ruin Probability Functions and Severity of Ruin as a Statistical Decision Problem [PDF]

open access: yesRisks, 2019
It is known that the classical ruin function under exponential claim-size distribution depends on two parameters, which are referred to as the mean claim size and the relative security loading. These parameters are assumed to be unknown and random, thus,
Emilio Gómez-Déniz   +2 more
doaj   +7 more sources

Ruin Analysis on a New Risk Model with Stochastic Premiums and Dependence Based on Time Series for Count Random Variables [PDF]

open access: yesEntropy, 2023
In this paper, we propose a new discrete-time risk model of an insurance portfolio with stochastic premiums, in which the temporal dependence among the premium numbers of consecutive periods is fitted by the first-order integer-valued autoregressive ...
Lihong Guan, Xiaohong Wang
doaj   +2 more sources

On the expected discounted penalty function at ruin of a surplus process with interest [PDF]

open access: yesInsurance: Mathematics and Economics, 2002
The paper deals with the ruin problem for an insurer, who receives interest on its surplus at time \(t\), \(U_{\delta}(t)\), at the constant force \(\delta\) per unit time. In particular the expected value of a discounted penalty function at ruin is investigated. Denoted by \(T_{\delta}\) the time of ruin, \(u\) the inizial surplus and \(\alpha\) a non-
David Dickson, Jun Cai
exaly   +3 more sources

Analyzing Sequential Betting with a Kelly-Inspired Convective-Diffusion Equation [PDF]

open access: yesEntropy
The purpose of this article is to analyze a sequence of independent bets by modeling it with a convective-diffusion equation (CDE). The approach follows the derivation of the Kelly Criterion (i.e., with a binomial distribution for the numbers of wins and
Darrell Velegol, Kyle J. M. Bishop
doaj   +2 more sources

A note on some joint distribution functions involving the time of ruin [PDF]

open access: yesInsurance: Mathematics and Economics, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
David Dickson
exaly   +4 more sources

Ruin probabilities and penalty functions with stochastic rates of interest

open access: yesStochastic Processes and Their Applications, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jun Cai
exaly   +3 more sources

Reducing the Possibility of Ruin by Maximizing the Survival Function for the Insurance Company’s Portfolio

open access: yesJournal of Mathematics, 2022
In this paper, the intention was to reduce the possibility of ruin in the insurance company by maximizing its survival function. This paper uses a perturbed classical risk process as the basic model.
Masoud Komunte   +2 more
doaj   +2 more sources

Numerical computation of Gerber–Shiu function for insurance surplus process with additional investment

open access: yesInternational Journal of Mathematics for Industry, 2023
This paper studies the Gerber–Shiu function for the insurance surplus process with additional investment under the Bachelier model. The Gerber–Shiu function allows us to study the moments of the time of ruin, which is the first time that the surplus is ...
Sutipon Punaluek, Yuri Imamura
doaj   +1 more source

Ruin probabilities as functions of the roots of a polynomial

open access: yesModern Stochastics: Theory and Applications, 2023
A new formula for the ultimate ruin probability in the Cramér–Lundberg risk process is provided when the claims are assumed to follow a finite mixture of m Erlang distributions. Using the theory of recurrence sequences, the method proposed here shifts the problem of finding the ruin probability to the study of an associated characteristic polynomial ...
David J. Santana, Luis Rincón
openaire   +3 more sources

On a Fractional Stochastic Risk Model with a Random Initial Surplus and a Multi-Layer Strategy

open access: yesMathematics, 2022
The paper deals with a fractional time-changed stochastic risk model, including stochastic premiums, dividends and also a stochastic initial surplus as a capital derived from a previous investment.
Enrica Pirozzi
doaj   +1 more source

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