Sex Differences in Childlessness in Norway: Identification of Underlying Demographic Drivers

Øystein Kravdal ()
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Øystein Kravdal: Norwegian Institute of Public Health

European Journal of Population, 2021, vol. 37, issue 4, No 10, 1023-1041

Abstract: Abstract In Norway, as in many other rich countries, childlessness is more common among men than women and has also increased more among men. Over the last 15 years, the gap in childlessness between 45-year-old women and men has widened from 5.8 to 10.2 percentage points, according to national register data. In the Norwegian-born subgroup, the gap has increased by 2.4 percentage points, from 5.8 to 8.2. The goal of the study was to identify the demographic drivers of this development, using a quite simple, but original, decomposition approach. The components reflect changes in relative cohort sizes, whether the child has one native and one immigrant parent, whether the father was older than 45, and whether one of the parents already had a child, no longer lived in Norway at age 45, or was unidentified. It was found that the modestly increasing sex gap in childlessness among the Norwegian-born is largely linked to changes in cohort sizes, i.e. fertility trends. Changes in re-partnership have actually contributed weakly in the opposite direction: It has become more common especially among men to have the first child with a partner who already had a child, and thus not contribute to bringing also that person out of childlessness. The importance of the various components is different for immigrants, among whom the sex gap in childlessness has increased particularly much. This development may also reflect that especially male immigrants perhaps have children in the home country who are not included in the Norwegian register.

Keywords: Childlessness; Women; Men; Sex difference; Demographic decomposition; Register data (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s10680-021-09590-4

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