RT Journal Article SR Electronic T1 Field of Study and Mental Health in Adulthood JF Journal of Human Resources JO J Hum Resour FD University of Wisconsin Press SP 0124-13353R2 DO 10.3368/jhr.0124-13353R2 A1 Stenberg, Anders A1 Tudor, Simona YR 2024 UL http://jhr.uwpress.org/content/early/2024/11/04/jhr.0124-13353R2.abstract AB We analyze whether field of study assigned at age 16 impacts mental health in adulthood. Using a regression discontinuity design that exploits GPA cutoffs, we find that admission to a preferred STEM field improves mental health, lowering both the incidence of antidepressant prescriptions and of mental health-related hospitalizations. As for mechanisms, suggestive evidence indicate that earnings explain about 40% of the estimates, but earlier proposed hypotheses based on schoolage peer characteristics such as ability rank, female shares or peer ability levels, have little explanatory power. Our findings imply that restrictions on individuals’ choices entail costs that may have been underestimated.