He joined the Institute for the Study of Labor as a research fellow in 2005. His current research includes studies of the firm-to-firm and university-to-firm mobility of research scientists and its implications for the diffusion of technology in the economy. He has recently completed research examining the origins of the patent surge in the United States in the 1980s and 1990s and the relation between firm size and innovative productivity. His past and present research interests also include empirical studies of organizational incentives and worker productivity. Dr. Marschke holds a Ph.D. in economics from the University of Chicago.