LEONARD E. BURMAN Co-Director, Tax Policy Center and Senior Fellow, Urban Institute, USABARBARA A. BUTRICA Senior Research Associate, Urban Institute, USAKWANG SOO CHEONG Assistant Professor of Finance, Graduate Division of Business and Management, John Hopkins University, USAWILLIAM G. GALE Arjay and Frances Fearing Miller Chair in Federal Economic Policy and Deputy Director, Economic Studies Programme, Brooking Institution, USAMATTHEW HALL Analyst, Antitrust Practice, NERA Economic Consulting, USAANN HARDING Professor of Applied Economics and Social Policy and Director, National Centre for Social and Economic Modelling (NATSEM), University of Canberra, AustraliaHOWARD M. IAMS Director, Division of Policy Evaluation, Social Security Administration's Research Office, USAHERWIG IMMERVOLL Economist, Social Policy Division, OECD, FranceMATHIEU LEFÈBVRE Research Assistant, Department of Economics, University of Liège, BelgiumHORACIO LEVY Senior Research Officer, Institute for Social and Economic Research, University of Essex, UKCHRISTINE LIETZ Research Associate, Institute of Advanced Studies, Vienna, AustriaRACHEL LLOYD Principal Research Fellow, National Centre for Social and Economic Modelling (NATSEM), University of Canberra, AustraliaDANIELA MANTOVANI Researcher of Public Economics, University of Modena e Reggio Emilia, ItalyCATHAL O'DONOGHUE Director, Irish Rural Economy Research Centre, Republic of IrelandPETER R. ORSZAG Joseph A. PechmanSenior Fellow in Economic Studies, Brookings Institute and Research Professor, Georgetown University, USALARS OSBERG McCulloch Professor of Economics, Dalhousie University, CanadaPIERRE PESTIEAU Professor, University of Liège, BelgiumLEON PODKAMINER Senior Research Fellow, Vienna Institute for International Economic Studies, AustriaJONATHAN A. SCHWABISH Senior Director, Research and Policy, Partnership for New York City, USATIMOTHY M. SMEEDING Maxwell Professor of Public Policy, Syracuse University, USAKAREN E. SMITH Senior Research Associate, Urban Institute, USAHOLLY SUTHERLAND Research Professor, Institute for Social and Economic Research, University of Essex, UKGERLINDE VERBIST Post-Doctoral Researcher, Centre for Social Policy, University of Antwerp, BelgiumNEIL WARREN Associate Professor of Economics, Australian Taxation Studies Programme, Faculty of Law, University of New South Wales, AustraliaEDWARD N. WOLFF Professor of Economics, New York University, USAAJIT ZACHARIAS Research Scholar, Levy Economics Institute, USA