1. University of Southern California, 650 Childs Way, Los Angeles, CA 90089 (e-mail: )
2. Board of Governors of the Federal Reserve System, 20th and C Street, NW, Washington, DC 20551 (e-mail: )
3. Federal Reserve Bank of Philadelphia, 10 Independence Mall, Philadelphia, PA 19106 (e-mail: )
4. University of Pennsylvania, 430 Vance Hall, 3733 Spruce St., Philadelphia, PA 19104 (e-mail: )