Causal Effects of Single-Sex Schools on Long-Term Outcomes : Evidence from Random High School Assignment in South Korea

I explore the causal effects of single-sex high schools on long-term labor market outcomes using a unique feature of educational policy in South Korea--—the random assignment of students to single-sex versus coeducational high schools. I find that the effect of single-sex schooling on earnings is positive for women but not for men. The effect varies with job experience, increasing by 1.9 percentage points with each additional year of experience. In addition, single-sex schooling affects other labor market outcomes, including women's work hours and job satisfaction. Finally, I use measurements of completed education and job training as human capital accumulation to study potential mechanisms for gender differences in the effect of single-sex schooling