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College Major Choice, Payoffs, and Gender Gaps

Discussion Paper

Christopher Campos, Pablo Muñoz, Alonso Bucarey, and Dante Contreras

October 2025

This paper studies how college major choices shape earnings and fertility outcomes. Using administrative data that link students’ preferences, random assignment to majors, and post-college outcomes, the researchers estimate the causal pecuniary and non-pecuniary returns to different fields of study.