LUCA EINAUDI is Senior Economist in the Department of Economic Affairs at the Prime Minister's Office, Italy. His work focuses on economic and monetary history and immigration policies. He pursued his research at Princeton, Institut de Sciences Politiques, Paris and the Centre for History and Economics, Cambridge. Among his publications are Money and Politics, European Monetary Unification and the Gold Standard (1865-73). RICCARDO FAUCCI is Professor of History of Economic Thought at the University of Pisa, Italy. A specialist on Italian economics, he is the author of Luigi Einaudi's biography, and of L'economia politica in Italia: Dal Cinquecento ai nostri giorni. In English, he has published Socialism and Marginalism in Italy in Socialism and Marginalism in Economics, edited by I. Steedman with S. Perri; and From Corporative 'Programmed Economy' to Post-war Planning: Some Notes on the Debate among Italian Economists in Money, Credit and the Role of the State: Essays in Honour of A. Graziani edited by R. Arena and N. Salvadori. ROBERTO MARCHIONATTI is Professor of Economics at the University of Turin, Italy. He is Director of the Research Centre on History and Methodology of Economics Claudio Napoleoni and Coordinator of the Ph.D. Program in Economics of Complexity and Creativity. He is the editor of From Our Italian Correspondent: Luigi Einaudi's Articles in the Economist, 1908-1946, Karl Marx: CriticalResponses and Early Mathematical Economics, 1871-1915.