Total daily change with age equals average lifetime change

James W. Vaupel
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James W. Vaupel: Syddansk Universitet

Demographic Research, 2010, vol. 22, issue 36, 1143-1148

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.

Keywords: life expectancy; population dynamics; stationary population; Gompertz mortality; measures of senescence; e dagger (search for similar items in EconPapers)
JEL-codes: J1 Z0 (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:dem:demres:v:22:y:2010:i:36

DOI: 10.4054/DemRes.2010.22.36

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