Darrell Duffie is the Dean Witter Distinguished Professor of Finance at Stanford University’s Graduate School of Business. He is 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 Moody’s Corporation since 2008. Duffie was the 2009 president of the American Finance Association. In 2014, he chaired the Market Participants Group, charged by the Financial Stability Board with recommending reforms to Libor, Euribor, and other interest rate benchmarks. Duffie’s recent books include How Big Banks Fail (Princeton University Press, 2010), Measuring Corporate Default Risk (Oxford University Press, 2011), and Dark Markets (Princeton University Press, 2012).