Darrell Duffie is the Dean Witter Distinguished Professor of Finance at Stanford University\'s Graduate School of Business. He is a member of the Financial Advisory Roundtable of the Federal Reserve Bank of New York, a Fellow and member of the Council of the Econometric Society, a Research Fellow of the National Bureau of Economic Research, a Fellow of the American Academy of Arts and Sciences, and a member of the board of directors of Moodys Corporation since 2008.