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Like Father, Like Son? A Note on the Intergenerational Transmission of IQ Scores

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  • Sandra E. Black
  • Paul J. Devereux
  • Kjell G. Salvanes

Abstract

More able parents tend to have more able children. While few would question the validity of this statement, there is little large-scale evidence on the intergenerational transmission of IQ scores. Using a larger and more comprehensive dataset than previous work, we are able to estimate the intergenerational correlation in IQ scores, examining not just average correlations but also how this relationship varies for different subpopulations. We find that there is substantial intergenerational transmission of IQ scores; an increase in father's IQ at age 18 of 10% is associated with a 3.2% increase in son's IQ at the same age. This relationship holds true no matter how we break the data. This effect is much larger than our estimated elasticity of intergenerational transmission of income of approximately .2.

Suggested Citation

  • Sandra E. Black & Paul J. Devereux & Kjell G. Salvanes, 2008. "Like Father, Like Son? A Note on the Intergenerational Transmission of IQ Scores," NBER Working Papers 14274, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:14274
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    References listed on IDEAS

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    1. Sandra E. Black & Paul J. Devereux & Kjell G. Salvanes, 2010. "Small Family, Smart Family? Family Size and the IQ Scores of Young Men," Journal of Human Resources, University of Wisconsin Press, vol. 45(1).
    2. Sandra E. Black & Paul J. Devereux & Kjell G. Salvanes, 2011. "Older and Wiser? Birth Order and IQ of Young Men," CESifo Economic Studies, CESifo Group, vol. 57(1), pages 103-120, March.
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    5. Sandra E. Black & Paul J. Devereux & Kjell G. Salvanes, 2005. "Why the Apple Doesn't Fall Far: Understanding Intergenerational Transmission of Human Capital," American Economic Review, American Economic Association, vol. 95(1), pages 437-449, March.
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    JEL classification:

    • I0 - Health, Education, and Welfare - - General
    • J0 - Labor and Demographic Economics - - General
    • J1 - Labor and Demographic Economics - - Demographic Economics

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