Seth Richards-Shubik is an Associate Research Professor of Economics at Johns Hopkins University.  His research interests are in health economics and applied econometrics, particularly in medical service markets, network models, and health inequality.  His current research studies optimal contracting for medical services and referrals for specialty care, along with methods for estimating the production of health and testing for spillovers in networks.  Professor Richards-Shubik received his PhD from the University of Pennsylvania, and has an MPA from Syracuse University and a BA from Harvard University.  Prior to joining Hopkins, he was on the faculties of Carnegie Mellon University and Lehigh University.