Before joining Citi as Chief Economist in 2010, a position he held until 2018, Willem was Professor of Political Economy at the London School of Economics and Adviser to Goldman Sachs from 2005 to 2010. He was Chief Economist for the European Bank for Reconstruction & Development from 2000 to 2005 and a founder External Member of the Monetary Policy Committee of the Bank of England from 1997 to 2000. He has been a Consultant to the IMF, the World Bank, the Inter-American Development Bank, the Asian Development Bank and the European Commission, and has been an Adviser to many central banks and finance ministries.
Willem has published on economic affairs in books, professional journals and the press, and has held academic positions at Princeton University (1975-76 and 1977-79), Bristol University (1980-82), the London School of Economics and Political Science (1976-77, 1982-85 and 2005-2010), Yale University (1985-1994) and Cambridge University (1994-2000). Willem holds a BA in economics from Cambridge University and a PhD in economics from Yale University. He has been a member of the British Academy since 1998 and was awarded the CBE for services to economics in 2000. He is an Adjunct Professor of Economics at Columbia University and an Adjunct Senior Fellow at the Council on Foreign Relations. He is married to Professor Anne Sibert.