Results 21 to 30 of about 171,937 (326)

Reinsurance in the Supplementary Health: A Counterfactual Study on the Impacts of Reinsurance Treaties Adoption by Healthcare Plans Operators in Brazil

open access: yesBBR: Brazilian Business Review, 2021
The sustainability of the Brazilian Supplementary Health System has been frequently debated, since the number of operators has decreased considerably in recent years after bankruptcy records.
Caio Alexandrino Costa Areias   +1 more
doaj   +1 more source

From explanation of the past to prediction of the future: A comparative and predictive research design in the Social Sciences

open access: yesSocial Sciences and Humanities Open, 2022
Business and Psychology research (and the Social Sciences, in general) is heavily biased toward explaining the past. The holy grail in such explanation-oriented research is to develop causal theory, and to test this theory with historical data against a ...
Arjen van Witteloostuijn   +5 more
doaj   +1 more source

First passage problems for upwards skip-free random walks via the $\Phi,W,Z$ paradigm [PDF]

open access: yes, 2018
We develop the theory of the $W$ and $Z$ scale functions for right-continuous (upwards skip-free) discrete-time discrete-space random walks, along the lines of the analogue theory for spectrally negative L\'evy processes.
Avram, Florin, Vidmar, Matija
core   +4 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

Sophisticated gamblers ruin and survival chances [PDF]

open access: yes, 2013
This note explores the mathematical theory to solve modern gamblers ruin problems. We establish a ruin framework and solve for the probability of bankruptcy.
Mehta, Salil
core   +2 more sources

Gerber–Shiu Function in a Class of Delayed and Perturbed Risk Model with Dependence

open access: yesRisks, 2020
This paper considers the risk model perturbed by a diffusion process with a time delay in the arrival of the first two claims and takes into account dependence between claim amounts and the claim inter-occurrence times.
Franck Adékambi, Essodina Takouda
doaj   +1 more source

Cash Flow Optimization on Insurance: An Application of Fixed-Point Theory

open access: yesMathematics, 2023
The purpose of this paper is to explore a discrete-time cash flow optimization problem of the insurance company with time value of ruin under different interest rates.
Yangmin Zhong, Huaping Huang
doaj   +1 more source

On the Depletion Problem for an Insurance Risk Process: New Non-ruin Quantities in Collective Risk Theory [PDF]

open access: yes, 2014
The field of risk theory has traditionally focused on ruin-related quantities. In particular, the socalled Expected Discounted Penalty Function has been the object of a thorough study over the years.
Ben-Salah, Zied   +3 more
core   +3 more sources

On the Expected Discounted Penalty Function Using Physics-Informed Neural Network

open access: yesJournal of Mathematics, 2023
We study the expected discounted penalty at ruin under a stochastic discount rate for the compound Poisson risk model with a threshold dividend strategy. The discount rate is modeled by a Poisson process and a standard Brownian motion.
Jiayu Wang, Houchun Wang
doaj   +1 more source

The life and work of Olof Thorin (1912–2004); pp. 18–25 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2008
This paper reviews Olof Thorin’s contributions to mathematical analysis, actuarial mathematics, and probability theory, though in reversed order. In probability theory he is known for his path-breaking work on infinite divisibility.
Lennart Bondesson   +2 more
doaj   +1 more source

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