Linking period and cohort life-expectancy linear increases in Gompertz proportional hazards models

In a Gompertz mortality model with constant yearly improvements at all ages, linear increases in period life expectancy correspond to linear increases in the respective cohort life expectancy. The link between the two measures can be given by a simple approximate relationship.

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Bibliographic Details
Published inDemographic research Vol. 24; pp. 455 - 468
Main Authors Missov, Trifon I., Lenart, Adam
Format Journal Article
LanguageEnglish
Published Max Planck Institute for Demographic Research 2011
Subjects
Aesthetic proportionality
Age
Death
Demographic surveys
Demography
Formal Relationships 13
Life expectancy
Longevity
Methods
Modeling
Mortality
Mortality Rates
Parametric models
Rates of change
Standard deviation
Germany
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Summary:In a Gompertz mortality model with constant yearly improvements at all ages, linear increases in period life expectancy correspond to linear increases in the respective cohort life expectancy. The link between the two measures can be given by a simple approximate relationship.
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ISSN:1435-9871
1435-9871
DOI:10.4054/DemRes.2011.24.19