Lewis S. Alexander is a Managing Director and the Global Head for Emerging Markets in the Economic and Market Analysis department of Citigroup. Lewis directs the Firm's economic research across the emerging world, including analyst teams in the Americas, Asia and Europe. 

Prior to joining Citigroup in the fall of 1999, Lewis had a long career at the Board of Governors of the Federal Reserve System, where he served most recently as the Deputy Director of the Division of International Finance. As Deputy Director, Lewis directed the Federal Reserve Board's analysis of foreign financial markets and international banking, represented the Federal Reserve in key international forums, and worked closely with the U.S. Treasury on the policy response to the crises in Asia, Latin America and Russia. Lewis also was an Associate Economist of the Federal Open Market Committee. Earlier, he served as Chief Economist of the U.S. Department of Commerce (1993-96) and was a consultant to the Bank for International Settlements (1988-89.) 

Lewis received his Ph.D. in Economics from Yale University in 1987, after obtaining an M.Phil. there in 1985. Previously, he obtained an A.M. (1979) and an A.B. (1978) in Economics from Stanford University.