NBER Working Paper No. 14577
---- Acknowledgments ----
Part of the work was performed while the first author was an Alfred P. Sloan Industry Studies Fellow. We thank the editor Larry Katz and the referees for their constructive comments, as well as various seminar audiences for their feedback, and we gratefully acknowledge the financial support of the National Science Foundation (Award SBE-0738142) and the Merck Foundation through the Columbia-Stanford Consortium on Medical Innovation. The project would not have been possible without Andrew Stellman's extraordinary programming skills (http://www.stellman-greene.com/). The authors also express gratitude to the Association of American Medical Colleges for providing licensed access to the AAMC Faculty Roster, and acknowledge the stewardship of Dr. Hershel Alexander (AAMC Director of Medical School and Faculty Studies). The National Institutes of Health partially supports the AAMC Faculty Roster under contract N01-OD-3-1015. The usual disclaimer applies. Please send correspondence to firstname.lastname@example.org.