James W. Vaupel

http://www.demographic-research.org/volumes/vol22/36/

doi:10.4054/DemRes.2010.22.36

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Abstract

In a stationary population, the change with age in some characteristic at a point in time, summed over all the individuals in the population, equals the change in this characteristic, from the start to the end of the lifetime of each individual, averaged over all lifetimes of the individuals in the cohort.

Author's affiliation
James W. Vaupel
Max Planck Institute for Demographic Research, Germany

Keywords
e dagger, Gompertz mortality, life expectancy, measures of senescence, population dynamics, stationary population

Related links

All publications in the ongoing Special Collection 8 "Formal Relationships" can be found at http://www.demographic-research.org/special/8/

Word count (Main text)
644

Other articles by the same author/authors (in Demographic Research)

	[23-26] Attrition in heterogeneous cohorts
	[23-23] Senescence vs. sustenance: Evolutionary-demographic models of aging
	[21-29] Survival as a Function of Life Expectancy
	[20-29] The age separating early deaths from late deaths
	[20-3] Life lived and left: Carey’s equality
	[20-1] Formal Relationships: Introduction and Orientation
	[14-7] The relative tail of longevity and the mean remaining lifetime
	[13-24] Lifesaving, lifetimes and lifetables
	[8-7] Oldest Old Mortality in China
	[7-8] Life Expectancy at Current Rates vs. Current Conditions: A Reflexion Stimulated by Bongaarts and Feeney’s "How Long Do We Live?"
	[7-1] Decomposing demographic change into direct vs. compositional components
	[6-5] Dr. Väinö Kannisto: A Reflexion

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