-Vice President, CRA International, Inc., 2007-present
-William H. Abbott Professor of International Business and Economics, 2001-present; professor, 1994-2001; associate professor, 1989-1994; assistant professor, 1985-1989, University of Chicago Graduate School of Business
-Research associate, 1995-present; faculty research fellow, 1991-1995; National Bureau of Economic Research (NBER)
-Board member, Chicago Census Research Data Center, 2002-present
-Principal, Chicago Partners (economics and finance consulting firm), numerous engagements related to antitrust, auto leasing, consumer borrowing, lost earnings, patent infringement, price discrimination and economic damages, 1995-present
-Member, panel on federal business statistics, Committee on National Statistics, National Academy of Sciences, 2004-2006
-Member, Executive Committee, Northwestern/University of Chicago Joint Center for Poverty Research, 1998-2000
-Visiting scholar, Milken Institute for Job and Capital Formation, 1994
-Visiting associate professor of economics, Massachusetts Institute of Technology, 1993-1994
-Consultant and research associate, Corporate Studies Group, Federal Reserve Bank of Chicago, 1991-1993
-Visiting associate professor of economics, University of Maryland, 1990
-Organizer, group on labor market dynamics and aggregate fluctuations, NBER, 1988-1992
-National Fellow, Hoover Institution, Stanford University, 1988-1989
-Teaching fellow, Brown University, 1983-1985
M.A., Ph.D., economics, Brown University
B.A., economics, Portland State University