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John Casterline

Department of Sociology and Institute for Population Research, Ohio State University, Columbus, OH, USA. • casterline.10(at)osu.edu
Families and households

Modest changes in spousal age differences over time in sub-Saharan Africa

October 12, 2025October 6, 2025 Pearl Kyei, Samuel Agyei-Mensah, John Casterline and Ayaga Bawah
Africa, marriege

Using information from 144 surveys across 34 countries from 1980 to 2020, Pearl Kyei, Samuel Agyei-Mensah, John Casterline and Ayaga Bawah find that the age difference between spouses decreased by … Read more

Fertility and reproduction

Fertility preferences and reproductive outcomes in the developing world

March 10, 2021January 14, 2019 John Bongaarts and John Casterline
Africa, Americas, Fertility, Women

The implementation of fertility desires through contraception is imperfect, resulting in unplanned births and induced abortions. The highest unplanned pregnancy rates (over two pregnancies during a woman’s lifetime) are observed … Read more

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  • The short-lived fertility upturn among Polish emigrants to the Netherlands
  • Immigrants’ cultural identity and employment chances in Italy
  • Socioeconomic inequalities and single women’s entry into parenthood in Belgium
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