Raghuram Govind Rajan (born 3 February 1963) is an Indian economist and the Katherine Dusak Miller Distinguished Service Professor of Finance at the University of Chicago Booth School of Business. Between 2003 and 2006 he was Chief Economist and director of research at the International Monetary Fund. From September 2013 through September 2016 he was the 23rd Governor of the Reserve Bank of India; in 2015, during his tenure at the RBI, he became the Vice-Chairman of the Bank for International Settlements.