Estimation of Gender Wage Gap in the University of North Carolina System

Zihan Zhang and Jan Hannig

Papers from arXiv.org

Abstract: Gender pay equity remains an open challenge in academia despite decades of movements. Prior studies, however, have relied largely on descriptive regressions, leaving causal analysis underexplored. This study examines gender-based wage disparities among tenure-track faculty in the University of North Carolina system using both parametric and non-parametric causal inference methods. In particular, we employed propensity score matching and causal forests to estimate the causal effect of gender on academic salary while controlling for university type, discipline, titles, working years, and scholarly productivity metrics. The results indicate that on average female professors earn approximately 6% less than their male colleagues with similar qualifications and positions.

Date: 2025-05
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