Constructing Multiregional Life Tables using Place-of-Birth-Specific Migration Data

Ledent, J. (1980). Constructing Multiregional Life Tables using Place-of-Birth-Specific Migration Data. IIASA Working Paper. IIASA, Laxenburg, Austria: WP-80-096

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Abstract

The usual approach to the construction of a multiregional life table involves the calculation of a multiradix increment-decrement life table based on commonly available data about interregional migration streams. However, if the migration data are cross-classified by place of birth, an alternative multiregional life table can be obtained by constructing a set of uniradix increment-decrement life tables, calculated separately for each regional share of the initial cohort.

This paper demonstrates this alternative method (place-of-birth-dependent approach) and contrasts it with the more traditional one (place-of-birth-independent approach) using data on the female population, observed between 1965 and 1970, for the system of the four US Census Regions. The main result is that the consideration of place-of-birth-specific migration data reduces somewhat the fraction of the regional expectation of life at birth to be spent outside the region of birth.

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