David Ridley is an Assistant Professor of Business and Economics at Duke University. Duke University is also where David earned a doctorate in economics. In his research David examines innovation, location, and pricing. Much of his research concerns the biopharmaceutical industry. To encourage innovation in biopharmaceutical treatments for neglected diseases, David, with Henry Grabowski and Jeffrey Moe, proposed a priority review voucher prize. The prize became law in 2007. David's research has been funded by the National Institutes of Health. He teaches courses on health economics, microeconomics, and business strategy, and has received teaching awards for those courses.