Eric VerhoogenDepartment of EconomicsDept. of International & Public Affairs Columbia University 420 W. 118th Street New York, NY 10027 Tel: 212/854-4428 Fax: 212/854-8059
E-Mail: |

National Bureau of Economic Research, 1050 Massachusetts Ave.,
Cambridge, MA 02138; 617-868-3900; email: info@nber.org









