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model are positively dependent through the stochastic ordering (PDS). The PDS risks include independent, comonotonic …, conditionally stochastically increasing (CI) risks, and other interesting dependent risks. By proving the convolution preservation … of the convex order for PDS random vectors, we show that in individualized reinsurance treaties, to minimize certain risk …
Persistent link: https://www.econbiz.de/10010688102
The inverse of the (additive) generator of an Archimedean copula is a strictly decreasing and convex function, while … an inverse generator of an Archimedean copula from a utility function. If we derive the inverse of the generator from the …–Pratt coefficient of absolute risk aversion) and the strength of dependence featured by the corresponding Archimedean copula. Some new …
Persistent link: https://www.econbiz.de/10011116634
Consider a renewal risk model in which claim sizes and inter-arrival times correspondingly form a sequence of independent and identically distributed random pairs, with each pair obeying a dependence structure described via the conditional distribution of the inter-arrival time given the...
Persistent link: https://www.econbiz.de/10010594512
In this paper, we consider an extension of the classical risk model in which the premium rate policy is adaptive to claim experience. We assume that the premium rate is reviewed each time the surplus reaches a new descending ladder height. A choice between a finite number m of rates is then made...
Persistent link: https://www.econbiz.de/10010594515
Motivated by the Guaranteed Minimum Death Benefits in various deferred annuities, we investigate the calculation of the expected discounted value of a payment at the time of death. The payment depends on the price of a stock at that time and possibly also on the history of the stock price. If...
Persistent link: https://www.econbiz.de/10010576737
One of the main goals in non-life insurance is to estimate the claims reserve distribution. A generalized time series model, that allows for modeling the conditional mean and variance of the claim amounts, is proposed for the claims development. On contrary to the classical stochastic reserving...
Persistent link: https://www.econbiz.de/10011046677
We study capital requirements for bounded financial positions defined as the minimum amount of capital to invest in a chosen eligible asset targeting a pre-specified acceptability test. We allow for general acceptance sets and general eligible assets, including defaultable bonds. Since the...
Persistent link: https://www.econbiz.de/10010753200
We show how the probabilistic concepts of half-space trimming and depth may be used to define convex scenario sets Qα for stress testing the risk factors that affect the solvency of an insurance company over a prescribed time period. By choosing the scenario in Qα which minimizes net asset...
Persistent link: https://www.econbiz.de/10011046668
In this article we present a new approach to estimate the change of the present value of a given cashflow pattern caused by an interest rate shift. Our approximation is based on analysing the evolution of the present value function through a linear differential equation. The outcome is far more...
Persistent link: https://www.econbiz.de/10011190009
We examine a class of utility maximization problems with a non-necessarily law-invariant utility, and with a non-necessarily law-invariant risk measure constraint. Under a consistency requirement on the risk measure that we call Vigilance, we show the existence of optimal contingent claims, and...
Persistent link: https://www.econbiz.de/10011263856