Johns Hopkins University - Carey Business School, Johns Hopkins University, Johns Hopkins University - Department of Civil and Systems Engineering, Washington University, Saint Louis - John M. Olin School of Business, Federal Reserve Bank of Cleveland, Johns Hopkins University, Johns Hopkins University Department of Economics, Bloomberg School of Public Health, Department of Health Policy and Management, Johns Hopkins University, University of North Carolina (UNC) at Chapel Hill, Johns Hopkins University - Bloomberg School of Public Health and Johns Hopkins University