American Economic Review, Papers and Proceedings Vol. 100, Issue 2, Pages 303-308 May 2010 View on Publisher Site 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, Jonathan Gruber, and Robin McKnight. "Patient Cost Sharing in Low Income Populations." American Economic Review, Papers and Proceedings 100.2 (May 2010): 303-308.