An age-at-death distribution approach to forecast cohort mortality

Ugofilippo Basellini*, Søren Kjærgaard, Carlo Giovanni Camarda

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Abstrakt

Mortality forecasting has received increasing interest during recent decades due to the negative financial effects of continuous longevity improvements on public and private institutions’ liabilities. However, little attention has been paid to forecasting mortality from a cohort perspective. In this article, we introduce a novel methodology to forecast adult cohort mortality from age-at-death distributions. We propose a relational model that associates a time-invariant standard to a series of fully and partially observed distributions. Relation is achieved via a transformation of the age-axis. We show that cohort forecasts can improve our understanding of mortality developments by capturing distinct cohort effects, which might be overlooked by a conventional age–period perspective. Moreover, mortality experiences of partially observed cohorts are routinely completed. We illustrate our methodology on adult female mortality for cohorts born between 1835 and 1970 in two high-longevity countries using data from the Human Mortality Database.

OriginalsprogEngelsk
TidsskriftInsurance: Mathematics and Economics
Vol/bind91
Sider (fra-til)129-143
ISSN0167-6687
DOI
StatusUdgivet - mar. 2020

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