Youssef Cassis is Professor of Economic and Social History at the University of Geneva, Switzerland, and a Visiting Fellow at the London School of Economics and Political Science. His publications include City Bankers 1890–1914 (Cambridge, 1994), Big Business: The European Experience in the Twentieth Century (Oxford, 1997), and Capitals of Capital: A History of International Financial Centres 1780–2005 (Cambridge, 2006). He was the co-founder, in 1994, of Financial History Review, which he co-edited until 2005. He is currently President of the European Business History Association.