David Zervos is chief market strategist at Jefferies LLC. Zervos joined Jefferies in 2010 after spending 2009 as a visiting advisor in the Division of Monetary Affairs at the Board of Governors of the Federal Reserve System in Washington, D.C. Previously he held a variety of research, sales and trading positions in the private sector, most recently managing Global Macro Portfolios for Brevan Howard and UBS O'Connor. He began his career as an economist at the Federal Reserve Board in the early 1990s. Zervos received a B.Sc. from Washington University, and an M.A. and Ph.D. in economics from the University of Rochester.