-Senior economist, Federal Reserve Bank of Dallas, 1998-2006
-Visiting scholar, Office of Tax Analysis, Treasury Department, 2005
-Senior economist, President's Council of Economic Advisers, 2003-2004
-Assistant professor of economics, Ohio State University, 1990-1998
-Economist, Joint Committee on Taxation, U.S. Congress, 1992-1993
Ph.D., M.A., economics, Harvard University
B.A., economics, Yale University