Volume 13 - Article 21 | Pages 547–558
Five period measures of longevity
Date received: | 23 Feb 2005 |
Date published: | 22 Nov 2005 |
Word count: | 919 |
Keywords: | life expectancy, longevity, measures, period, tempo distortion |
DOI: | 10.4054/DemRes.2005.13.21 |
Abstract
This study provides a summary of recently proposed alternatives period measures of "longevity" and assesses whether empirical differences between these measures are consistent with predictions from analytic studies. Particular attention is given to the tempo effect. Three of the five period measures are virtually equal to one another in a simulated population in which mortality follows a Gompertz model with a constant rate of improvement. Similar results are observed among females in Denmark, England and Wales and Sweden in the last quarter century. However, these three measures differ substantially from the conventional period life expectancy when mortality changes over time. These findings are consistent with theoretical analysis by Bongaarts and Feeney (2002, 2003, 2005) which demonstrated that this deviation is caused by a tempo effect whose size varies with the rate of change in mortality.
Author's Affiliation
John Bongaarts - Population Council, International
Other articles by the same author/authors in Demographic Research
»
The effect of contraception on fertility: Is sub-Saharan Africa different?
Volume 37 - Article 6
»
Modeling the fertility impact of the proximate determinants: Time for a tune-up
Volume 33 - Article 19
Most recent similar articles in Demographic Research
»
Life expectancy is the death-weighted average of the reciprocal of the survival-specific force of mortality
Volume 22 - Article 5 | Keywords: life expectancy, longevity
»
Mortality tempo-adjustment: An empirical application
Volume 15 - Article 21 | Keywords: life expectancy, tempo distortion
»
Unobserved population heterogeneity and dynamics of health disparities
Volume 43 - Article 34 | Keywords: life expectancy
»
Distributionally adjusted life expectancy as a life table function
Volume 43 - Article 14 | Keywords: life expectancy
»
Greater mortality variability in the United States in comparison with peer countries
Volume 42 - Article 36 | Keywords: life expectancy
Articles
Citations
Download to Citation Manager
Similar Articles
PubMed
Google Scholar