The central focus of my research is innovation, particularly technological innovation.  Innovation is an extremely complex process that varies across places, applications, and over time.  Understanding it well enough to support public policy development demands that researchers employ a variety of methods, devise creative conceptual frameworks, engage in continual debate, and maintain a healthy sense of humility.  I am currently working in the areas highlighted below as well as advising doctoral students in these and many other areas.

Advanced Manufacturing

Energy Innovation


High-Skill Migration

Innovation Policy

20th and 21st Century U. S. History

For a list of publications, please click here.