David Blaine Ridley

Professor of the Practice of Business Adminstration

External Address: 
100 Fuqua Drive, Durham, NC 27708-0120
Internal Office Address: 
Duke Box 90120, 100 Fuqua Drive, Durham, NC 27708-0120
(919) 660-3784

David Ridley is the Dr. and Mrs. Frank A. Riddick Professor of the Practice of Business. He is also the Faculty Director of Duke's Health Sector Management program. In his research, David examines innovation and pricing, especially in health care. He was the lead author of the paper proposing the priority review voucher program to encourage development of drugs for neglected diseases. The voucher program became law in the U.S. in 2007 and the market price of vouchers has been more than $100 million. David has published in economics journals (American Economic Journal: Economic Policy), medical journals (Journal of the American Medical Association), and scientific journals (Nature Reviews Drug Discovery). David teaches in the daytime MBA and executive MBA programs. He received a PhD in economics from Duke University in 2001.


  • Ph.D., Duke University 2001
  • M.A., Duke University 1995
  • B.A., University of Missouri at Columbia 1993

Yurukoglu, A, Liebman, E, and Ridley, DB. "The Role of Government Reimbursement in Drug Shortages." American Economic Journal: Economic Policy 9, no. 2 (May 2017): 348-382. Full Text

Ridley, DB. "Priorities for the Priority Review Voucher." The American journal of tropical medicine and hygiene 96, no. 1 (January 2017): 14-15. Full Text

Ridley, DB, and Zhang, S. "Regulation of price increases." International Journal of Industrial Organization 50 (January 2017): 186-213. Full Text

Basu, A, Axelsen, K, Grabowski, DC, Meltzer, DO, Polsky, D, Ridley, DB, Wiederkehr, D, and Philipson, TJ. "Real-World Data: Policy Issues Regarding their Access and Use." Medical care 54, no. 12 (December 2016): 1038-1044. Full Text

Basu, A, Axelsen, K, Grabowski, DC, Meltzer, DO, Polsky, D, Ridley, DB, Wiederkehr, D, and Philipson, TJ. "Real-World Data: Responses to Zito and Doshi." Medical care 54, no. 12 (December 2016): 1048-1049. Full Text

Ridley, DB, and Régnier, SA. "The Commercial Market For Priority Review Vouchers." Health affairs (Project Hope) 35, no. 5 (May 2016): 776-783. Full Text

Ridley, DB, Dent, J, and Egerton-Warburton, C. "Efficacy of the Priority Review Voucher Program." JAMA 315, no. 15 (April 2016): 1659-1660. (Letter) Full Text

Ridley, DB, Bei, X, and Liebman, EB. "No Shot: US Vaccine Prices And Shortages." Health affairs (Project Hope) 35, no. 2 (February 2016): 235-241. Full Text

Regnier, SA, and Ridley, DB. "Market watch: Forecasting market share in the US pharmaceutical market." Nature reviews. Drug discovery 14, no. 9 (September 2015): 594-595. Full Text

Ridley, DB. "Payments, promotion, and the purple pill." Health Economics (United Kingdom) 24, no. 1 (January 1, 2015): 86-103. Full Text


Ridley, DB. "Hotelling’s Law." In Palgrave Encyclopedia of Strategic Management,edited by D Teece and M Augier. 2013.

Towse, A, Keuffel, E, Kettler, HE, and Ridley, DB. "Drugs and Vaccines for Developing Countries." In The Oxford Handbook of the Economics of the Biopharmaceutical Industry. September 18, 2012. Full Text

Grabowski, HG, Ridley, David B., , Moe, and Jeffrey L., . "Encouraging innovative treatment of neglected diseases through priority review vouchers." In Prescribing Cultures and Pharmaceutical Policy in the Asia-Pacific,edited by K Eggleston, 347-365. Stanford, CA: Stanford University: The Walter H, Shorenstein Asia-Pacific Research Center, September 1, 2009. Open Access Copy

GHTC R&D Mapping awarded by PATH (Principal Investigator). 2016 to 2017

Determinants and Consequences of Alcohol Consumption awarded by National Institutes of Health (Investigator). 2005 to 2011