Estimating mean lifetime
Document Type
Article (peer-reviewed)
Publication Date
2003
Abstract
The life expectancy implied by current age-specific mortality rates is calculated with life table methods that are among the oldest and most fundamental tools of demography. We demonstrate that these conventional estimates of period life expectancy are affected by an undesirable "tempo effect." The tempo effect is positive when the mean age at death is rising and negative when the mean is declining. Estimates of the effect for females in three countries with high and rising life expectancy range from 1.6 yr in the U.S. and Sweden to 2.4 yr in France for the period 1980-1995.
DOI
10.1073/pnas.2035060100
Language
English
Recommended Citation
Bongaarts, John and Griffith Feeney. 2003. "Estimating mean lifetime," Proceedings of the National Academy of Sciences of the United States of America 100(23): 13127–13133.