Quasi-experimental evidence for the causal link between fertility and subjective well-being

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This article presents causal evidence on the impact of fertility on women’s subjective well-being using quasi-experimental variation due to preferences for a mixed sibling sex composition (having at least one child of each sex). Based on a large sample of women from 35 developing countries, I find that having children increases mothers’ life satisfaction and happiness. I further establish that the positive impact of fertility on subjective well-being can be explained by related increases in mothers’ satisfaction with family life, friendship, and treatment by others.