Describing Age Structures of Migration

Chapter
Part of the The Springer Series on Demographic Methods and Population Analysis book series (PSDE, volume 26)

Abstract

Empirical schedules of age-specific rates exhibit remarkably persistent regularities in age pattern. Mortality schedules, for example, normally show a moderately high death rate immediately after birth, after which the rates drop to a minimum between ages 10 and 15, then increase slowly until about age 50, and thereafter rise at an increasing pace until the last years of life. Fertility rates generally start to take on nonzero values at about age 15 and attain a maximum somewhere between ages 20 and 30; the curve is unimodal and declines to zero once again at some age close to 50. Similar unimodal profiles may be found in schedules of first marriage, divorce, and remarriage (Rogers, 1986). The most prominent regularity in age-specific schedules of migration is the high concentration of migration among young adults; rates of migration also are high among children, starting with a peak during the first year of life, dropping to a low point during the teenage years, turning sharply upward to a peak near ages 20–22, and then declining regularly thereafter, except for a possible slight hump at the onset of the principal ages of retirement, and/or an upward slope at the oldest ages.

Keywords

Migration Rate Model Schedule American Community Survey Interregional Migration Migration Level 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.University of Colorado, Boulder Inst. Behavioral Science Population ProgramBoulderUSA
  2. 2.School of Social SciencesUniversity of SouthamptonSouthamptonUK
  3. 3.University of Colorado Institute of Behavioral ScienceBoulderUK

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