Professor of Economics at Imperial College Business School, Imperial College London. External Member of the Bank of England's Monetary Policy Committee. Formerly, Professor and Head of Department at the Department of Economics, Queen Mary, University of London. Has taught at the University of Bristol and London Business School and been a Visiting Professor at the Tuck School of Business, Dartmouth College, USA; Stern School of Business, New York University, USA. Elected Member of the Conference on Research in Income and Wealth (CRIW) and a Research Associate of the Centre for Economic Policy Research, the Centre for Economic Performance, LSE, and the IZA, Bonn. Since 1 February 2016, Non-Executive Director of the UK Statistics Authority. 2001-10, Member, Reporting Panel of the Competition Commission (now the Competition and Markets Authority). Has been on the editorial boards of Economica, the Journal of Industrial Economics and Economic Policy.