Sibling Correlation in Educational Attainment: A Test of Genetic Nurture

31 Pages Posted: 9 Jun 2020 Last revised: 12 Mar 2023

See all articles by John Cawley

John Cawley

Cornell University - College of Human Ecology, Department of Policy Analysis & Management (PAM); Cornell University - College of Arts & Sciences, Department of Economics; Erasmus University Rotterdam (EUR) - Erasmus School of Economics (ESE); University of Galway - J.E. Cairnes School of Business & Economics; NBER; IZA

Euna Han

College of Pharmacy, Yonsei University

Jiyoon Kim

Swarthmore College

Edward C. Norton

University of Michigan at Ann Arbor

Date Written: June 2020

Abstract

The educational attainment of siblings is highly correlated. We test for a specific type of peer effect between siblings in educational attainment: genetic nurture. Specifically, we test whether a person’s educational attainment is correlated with their sibling’s polygenic score (PGS) for educational attainment, controlling for their own PGS for educational attainment. Models estimated using genetic data in the National Longitudinal Survey of Adolescent to Adult Health (Add Health) yield strong evidence of such genetic nurture between siblings, and this result is robust to alternative measures of educational attainment and different measures of polygenic score.

Suggested Citation

Cawley, John and Han, Euna and Kim, Jiyoon and Norton, Edward C., Sibling Correlation in Educational Attainment: A Test of Genetic Nurture (June 2020). NBER Working Paper No. w27336, Available at SSRN: https://ssrn.com/abstract=3621842

John Cawley (Contact Author)

Cornell University - College of Human Ecology, Department of Policy Analysis & Management (PAM) ( email )

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Cornell University - College of Arts & Sciences, Department of Economics ( email )

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IZA ( email )

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Euna Han

College of Pharmacy, Yonsei University ( email )

Seoul
Korea, Republic of (South Korea)

HOME PAGE: http://works.bepress.com/euna_han

Jiyoon Kim

Swarthmore College ( email )

500 College Ave
Swarthmore, PA 19081
United States

Edward C. Norton

University of Michigan at Ann Arbor ( email )

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Ann Arbor, MI 48109
United States

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