Roberto Scazzieri is Professor of Economic Analysis at Università degli Studi, Bologna, Italy, and Fellow of the National Lincei Academy, Rome. He is also Senior Member of Gonville and Caius College, Cambridge and Life Member of Clare Hall, Cambridge. His intellectual biography has been included in volume I of The Makers of Modern Economics (edited by A. Heertje, 1993), together with the biographies of Partha Dasgupta, Takashi Negishi, Ariel Rubinstein, Richard Selten and Joseph Stiglitz.