American Economic Review Papers and Proceedings Vol. 106, Issue 5 May 2016 HKS Authors See citation below for complete author information. Amitabh Chandra Ethel Zimmerman Wiener Professor of Public Policy, HKS; Henry and Allison McCance Professor of Business Administration, HBS Citation Chandra, Amitabh, Amy Finkelstein, Adam Sacarny, and Chad Syverson. "Productivity Dispersion in Medicine and Manufacturing." American Economic Review Papers and Proceedings 106.5 (May 2016).