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Article

The effect of peers' genetic predisposition to depression on own mental health.

Journal of health economics - 1 Dec 2025

Jeong Yeongmi

Abstract excerpt

This paper studies how peers' genetic predisposition to depression affects own mental health during adolescence and early adulthood using data from the National Longitudinal Study of Adolescent to Adult Health (Add Health). I exploit variation within schools and across grades in same-gender grademates' average polygenic score-a linear index of genetic variants-for major depressive disorder (the MDD score). An...

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PMID: 40961878
DOI: 10.1016/j.jhealeco.2025.103053

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