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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
Canadian oil sands hold the third largest recognized oil deposit in the world. While the rapidly expanding oil sands industry in western Canada has driven economic growth, the extraction of the oil comes at a significant environmental cost. It is believed that the government policies have failed...
Persistent link: https://www.econbiz.de/10010939437
I investigate the allocation of wealth to cash, bonds, and stocks, along with the bond-to-stock ratio (BSR) when interest rates are time-varying and stock returns are predictable via the dividend-price ratio (DPR). The bond–stock mix and the BSR vary with the deviation of the current level of...
Persistent link: https://www.econbiz.de/10010940018
Multiplicity of equilibria is a common problem in many economic models. In general, it is impossible to devise methods that always find all equilibria for any type of model. A notable exception are models in which all equilibria are solutions to a system of polynomial equations since there are...
Persistent link: https://www.econbiz.de/10014025711
In this paper, we present closed-forms for the valuation of the barrier option whose underlying is exchange rate under the multi-dimensional Levy process, including stochastic interest rates and stochastic assets. Instantaneous forward interest rates are assumed under the Heath et al. [1992....
Persistent link: https://www.econbiz.de/10010595303
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