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Demographic research, 2019-07, Vol.41, p.1147-1196
2019

Details

Autor(en) / Beteiligte
Titel
Mortality shifts and mortality compression in period and cohort life tables
Ist Teil von
  • Demographic research, 2019-07, Vol.41, p.1147-1196
Ort / Verlag
Rostock: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften
Erscheinungsjahr
2019
Link zum Volltext
Quelle
Sociological Abstracts
Beschreibungen/Notizen
  • When age-specific mortality falls, period life tables give a distorted view of the life expectancy (LE) and the degree of mortality compression in birth cohorts. To derive mathematical expressions for the link between LEs and compression in period life tables on the one hand and corresponding variables in birth cohorts on the other hand. We analyse the age at death distribution (AADD) computed from the life table's d(x)column. We derive general expressions for the moments of this distribution in a series of annual period life tables, written as functions of the moments in the AADD of cohorts. We use data for Norwegian men and women to illustrate simple versions of the new expressions. The LE increases twice as fast across cohorts compared to what period life tables suggest under this model. Compression in Norwegian mortality, expressed in terms of decreasing variance of the AADDs, is approximately 40% slower in period than in cohort mortality. We show how one can analyse the amount of distortion in period LEs compared to cohort LEs. In addition, we show how period compression is determined by cohort compression, together with both period and cohort LEs.
Sprache
Englisch; Norwegisch
Identifikatoren
ISSN: 1435-9871
eISSN: 1435-9871
DOI: 10.4054/DemRes.2019.41.40
Titel-ID: cdi_doaj_primary_oai_doaj_org_article_276d51eccd7d406ab404637c6d30a207

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