James W. Vaupel

http://www.demographic-research.org/volumes/vol13/24/

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Abstract
Mortality change roils period rates. In the short term, conventional calculations of age-specific probabilities of death and life expectancy in the period immediately after the change depend on how many lives have been saved. In the long term, the probabilities and period life expectancy also depend on how long these lives have been saved. When mortality is changing, calculations of period life expectancy do not, except in special circumstances, measure the life expectancy of a cohort of newborns that hypothetically live all their lives under the new mortality regime.

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

Keywords
life expectancy, life tables

Word count (Main text)
4246

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	[7-1] Decomposing demographic change into direct vs. compositional components
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