Paradoxes When Computing Life Expectancy Over Aggregated Subpopulations

Haunsperger DB (1991). Paradoxes When Computing Life Expectancy Over Aggregated Subpopulations. IIASA Working Paper. IIASA, Laxenburg, Austria: WP-91-019

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Abstract

The calculated life expectancy (whether by subpopulation-specific characteristics or by age-specific mortality rates) for aggregated subpopulations need not lie within the limits of the individual subpopulations' life expectancies. For two subpopulations and two age groups, we present a geometric interpretation of exactly what happens and indicate how this generalizes. Also, we give a complete algebraic characterization of when paradoxes can and cannot occur for the case of two subpopulations and two age groups.

Item Type: Monograph (IIASA Working Paper)
Research Programs: World Population (POP)
Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 02:01
Last Modified: 25 Oct 2016 21:10
URI: http://pure.iiasa.ac.at/3546

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