University College Dublin, Ireland, and IZA, Germany
IZA World of Labor role
Lecturer, University College Dublin, Ireland
Economics of education, labor economics, demographic economics
Research fellow, Public Policy Institute of California in San Francisco (2000–2006); Assistant Professor of Economics and the Associate Director of the Center for Business and Economic Research at the University of Kentucky (2006–2012)
PhD Economics, Northwestern University, 2000
“Class size reduction and student achievement: The potential tradeoff between teacher quality and class size.” Journal of Human Resources 44:1 (2009): 223–250 (with S. Rivkin).
“Labor-market returns to the GED using regression discontinuity analysis.” Journal of Political Economy, forthcoming (with P. Mueser and K. Troske).
“The labor-market returns for community college degrees, diplomas, and certificates.” Journal of Labor Economics 32:1 (2014): 95–121 (with K. Troske and P. Coomes).
“Teacher characteristics and student achievement: Evidence from teacher surveys.” Journal of Urban Economics 57:2 (2005): 302–319.
Smaller classes are often associated with increased achievement, but the evidence is far from universalChristopher Jepsen, September 2015Numerous economic studies have considered the relationship between class size and student achievement, the majority of which have focused on elementary schools in the US and Europe. While the general finding is that smaller classes are associated with increased student achievement, a few high-quality studies find no relationship. Further, empirical research on the costs and benefits of smaller classes concludes that other education policies, such as tutoring, early childhood programs, or improving teacher quality would be better investments.MoreLess