Sean is a professor in the Brooks School of Public Policy at Cornell University and a Research Associate at the National Bureau of Economic Research. He is currently conducting research in three areas: the value of new medical technology; the extent and benefits of physician specialization; and the causes and consequences of geographical variation in medical spending. Prior to joining the PAM Department in 2004, Sean was a faculty member in the Health Care Systems Department at The Wharton School of the University of Pennsylvania. Sean worked for four years as a management consultant with APM and taught high school for two years before enrolling in graduate school. He received a B.A. from Dartmouth College in 1986 and a Ph.D. in economics from the University of Wisconsin-Madison in 1997.