Fractional mortality rate based on rational interpolating method and its application in actuarial science

Shilong Li, Xia Zhao () and Nailong Guo

Quality & Quantity: International Journal of Methodology, 2013, vol. 47, issue 2, 802 pages

Abstract: This paper attempts to introduce a new method with adjustable parameter for estimating the mortality of fractional age based on rational interpolating theory. The efficiency analysis of the method is given and some conditions the adjustable parameter should satisfy are given in order to meet the need of actuarial practice. We also analyze the relationship between our estimating method and the one based on UDD assumption—the most commonly used in actuarial study and practice. The result shows that the latter is just a special case of our results. Finally we apply our method to the calculations of actuarial present value of life insurance and annuities. Simulations are also done to give a clear comparison between traditional method and our method specified in this paper. Copyright Springer Science+Business Media B.V. 2013

Keywords: Rational interpolating method; Fractional death assumption; Mortality rate; Actuarial present value (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:spr:qualqt:v:47:y:2013:i:2:p:791-802

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DOI: 10.1007/s11135-011-9564-4

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