MPIDR Working Paper

Analytic expressions for life expectancy in Gamma-Gompertz Mortality Settings

Missov, T. I.
MPIDR Working Paper WP-2010-020, 8 pages.
Rostock, Max Planck Institute for Demographic Research (February 2010)
Open Access


In a population with Gamma-distributed individual frailty and Gompertz-distributed mortality there is a closed-form analytic expression for calculating the life-expectancy integral. Several simplifications of the resulting formula serve as plausible approximations.
The Max Planck Institute for Demographic Research (MPIDR) in Rostock is one of the leading demographic research centers in the world. It's part of the Max Planck Society, the internationally renowned German research society.