· Academic Research Consultant, Amazon.com, Inc.2020–
· Professor of Economics, Massachusetts Institute of Technology2016–
· Research Associate (Labor Studies), National Bureau of Economic Research (NBER)2009–
· Faculty Research Fellow (Labor Studies), National Bureau of Economic Research (NBER)2002–2009
· Professor of Public Policy, Harvard University1999–2016
· PhD in Economics, Massachusetts Institute of Technology1995–1999
· MA in Economics, Centro de Estudios Monetarios y Financieros (CEMFI)1993–1995
· BA in Economics, Universidad del País Vasco1987–1992