1. Harvard Business School, Baker Library 271, Soldiers Field, Boston, MA 02163.
2. World Bank, 1818 H Street, N.W., Washington, DC 20433.
3. Business Economics and Public Policy Department, The Wharton School, University of Pennsylvania, Philadelphia, PA 19104.
4. International Monetary Fund, 700 19th Street, N.W., Washington, DC 20431.
5. Massachusetts Institute of Technology, Department of Economics, 50 Memorial Drive, Cambridge, MA 02142.
6. Federal Reserve Bank of New York, Research and Statistics Group, 33 Liberty Street, New York, NY 10045.