JooHee earned his PhD in Sociology at the University of Massachusetts Amherst. In his dissertation “The Military and Incarceration: Hidden Mechanisms of Racial Inequality in the U.S. Labor Market, 1980-2010” he analyzes how prison and the military, two crucial but often neglected labor market institutions, have jointly reinforced racial inequality in the U.S. labor market since the 1980s. After graduation, as a Post-doc research at the School of Labor and Employment Relation, University of Illinois Urbana-Champaign JooHee produced a series of policy reports on the Illinois labor markets. His works are published at Demography, and Population Research and Policy Review.