John BongaartsPopulation Council
Population Council
Fertility preferences and reproductive outcomes in the developing world
Désir d’enfant et fécondité réalisée dans les pays en développement
John Bongaarts, John Casterline

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 in countries approaching the end of the fertility
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