1. Sandra E. Black is Professor of Economics and International and Public Affairs at Columbia University, New York City, New York. She is also an Affiliated Professor, Norwegian School of Economics, Bergen, Norway; Research Fellow, IZA (Institute of Labor Economics), Berlin, Germany; and Research Associate, National Bureau of Economic Research, Cambridge, Massachusetts.
2. Paul J. Devereux is Professor of Economics at University College Dublin, Dublin, Ireland, NHH, IZA, and CEPR. He is also an Affiliated Professor, Norwegian School of Economics, Bergen, Norway; Research Fellow, IZA (Institute of Labor Economics), Berlin, Germany; and Fellow, Centre for Economic Policy Research, London, United Kingdom.
3. Fanny Landaud is a CNRS (Centre national de la recherche scientifique) Researcher at THEMA (Théorie Économique, Modélisation, et Applications), CY Cergy Paris University, Cergy-Pontoise, France.
4. Kjell G. Salvanes is Professor of Economics, Norwegian School of Economics, Bergen, Norway. He is also Research Associate, IZA (Institute of Labor Economics), Berlin, Germany; Research Associate, Center for Economic Policy Research, London, United Kingdom; and Research Associate, Center for the Economics of Human Development, University of Chicago, Chicago, Illinois.