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Nonlinear Relationship between the Number of Children and Late-life Cognition

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  • Yu BAIting
  • Shiko MARUYAMA
  • Si WANG

Abstract

Late-life cognition is a growing concern as populations age. This study investigates how the number of children affects late-life cognition in rural China by exploiting the exogenous variation in the rollout timing of Family Planning Policies. Theoretical analysis suggests a nonlinear effect along the fertility dimension. Using data from the China Health and Retirement Longitudinal Study, we find nonlinear causal effects of fertility. Having one more child when the mother has 4+ children leads to adverse effects on a range of late-life cognition measures, while positive effects exist for episodic memory and mental intactness at low parities, implying hump-shaped effect heterogeneity. Underlying this hump-shaped causal relationship is increased interaction with children but a greater risk of chronic conditions.

Suggested Citation

  • Yu BAIting & Shiko MARUYAMA & Si WANG, 2024. "Nonlinear Relationship between the Number of Children and Late-life Cognition," Discussion papers 24056, Research Institute of Economy, Trade and Industry (RIETI).
    • Handle: RePEc:eti:dpaper:24056
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    JEL classification:

    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior
    • I15 - Health, Education, and Welfare - - Health - - - Health and Economic Development
    • J13 - Labor and Demographic Economics - - Demographic Economics - - - Fertility; Family Planning; Child Care; Children; Youth
    • J14 - Labor and Demographic Economics - - Demographic Economics - - - Economics of the Elderly; Economics of the Handicapped; Non-Labor Market Discrimination

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