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Improving Mortality: A Rule Of Thumb And Regulatory Tool, John H. Pollard
Improving Mortality: A Rule Of Thumb And Regulatory Tool, John H. Pollard
Journal of Actuarial Practice (1993-2006)
We develop a simple exact formula for determining cohort life expectancies under constant continuous uniform improvement in mortality using only a cross-sectional (period) Gompertz life table for the lives concerned and a simple approximation applicable to all life tables. The present values of annuities for such lives can be determined simply and accurately across the whole age span.
Comments On Some Parametric Models For Mortality Tables, Kam C. Yuen
Comments On Some Parametric Models For Mortality Tables, Kam C. Yuen
Journal of Actuarial Practice (1993-2006)
Parametric models for the entire age pattern of mortality have been suggested by Heligman and Pollard (1980) and Carriere (1992). The former is designed to fit the classical mortality pattern while the latter is supported by a statistical theory. Insights into their papers motivate us to consider a variation of the Heligman-Pollard model. We also apply these models to the 1993 Hong Kong Assured Lives Mortality Tables as well as the 1991 Hong Kong Female Life Table. This paper is not intended to construct a better parametric model for mortality tables; the main purpose is simply to provide insights into …