Life expectancy: Lower and upper bounds from surviving fractions and remaining life expectancy

We give simple upper and lower bounds on life expectancy. In a life-table population, if e(0) is the life expectancy at birth, M is the median length of life, and e(M) is the expected remaining life at age M, then (M+e(M))/2≤e(0)≤M+e(M)/2. In general, for any age x, if e(...

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Bibliographic Details
Main Author: Joel E. Cohen
Format: Article
Language:English
Published: Max Planck Institute for Demographic Research 2011-02-01
Series:Demographic Research
Subjects:
Online Access:http://www.demographic-research.org/volumes/vol24/11/