Professor in Economics at the University of California, Berkeley, he previously taught at the London School of Economics. Winner of the Nobel Prize for Economics in 2001 (with Michael Spence and Joseph Stiglitz) for his studies on "asymmetric information”. His most important work is “The Market for Lemons: Quality, Uncertainty and the Market Mechanism”, published in 1970, in which he highlighted serious problems that can invalidate the effective functioning of the market, due to asymmetric information. A member of numerous scientific committees, he writes for the most important specialist journals, including “American Economic Review” and “Quarterly Journal of Economics”. He recently published: Animal spirits: how human psychology drives the economy and why it matters for global capitalism, with R. Shiller, Princeton University Press (2009). Racconti di un Nobel dell’economia was published in Italy by Bocconi University (2003).