Helen F. Ladd is the Susan B. King Professor of Public Policy Studies and professor of economics at Duke University’s Sanford School of Public Policy. She edited Holding Schools Accountable: Performance Based Reform in Education (Brookings 1996) and was co-chair of a National Academy of Sciences Committee on Education Finance from 1996-99. She is co-editor of The Handbook of Research on Educational Finance and Policy (Routledge, first edition, 2008 and second edition 2015),the author of many articles on U.S. education policy, and the co-author of books on school choice in New Zealand and school reform in post-apartheid South Africa. She is a past president of the Association for Public Policy Analysis and Management and a member of the National Academy of Education.