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- W1978058869 abstract "In this paper we propose a subordinated Markov model for modeling stochastic mortality. The aging process of a life is assumed to follow a finite-state Markov process with a single absorbing state and the stochasticity of mortality is governed by a subordinating gamma process. We focus on the theoretical development of the model and have shown that the model exhibits many desirable properties of a mortality model and meets many model selection criteria laid out in Cairns et al. (2006a) and Cairns et al. (2008). The model is flexible and fits either historical mortality data or projected mortality data well.We also explore applications of the proposed model to the valuation of mortality-linked securities. A general valuation framework for valuing mortality-linked products is presented for this model. With a proposed risk loading mechanism, we can make an easy transition from the physical measure to a risk-neutral measure and hence is able to calibrate the model to market information. The phase-type structure of the model allows us to apply the matrix-analytic methods that have been extensively used in ruin theory in actuarial science and queuing theory in operations research (see Neuts, 1981; Asmussen, 1987; Asmussen and Albrecher, 2010). As a result, many quantities of interest such as the distribution of future survival rates, prediction intervals, the term structure of mortality as well as the value of caps and floors on the survival index can be obtained analytically." @default.
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- W1978058869 date "2011-01-01" @default.
- W1978058869 modified "2023-09-27" @default.
- W1978058869 title "A Subordinated Markov Model for Stochastic Mortality" @default.
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- W1978058869 doi "https://doi.org/10.2139/ssrn.1949514" @default.
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