Institution: | Department of Economics, University of British Columbia, #997-1873 East Mall, Vancouver, BC V6T 1Z1, Canada. Tel: (604) 822-2544;Fax: (604) 822-5915;E-mail:; Econometrics and Business Statistics, School of Economics &Political Science, University of Sydney, Sydney, NSW 2006, Australia. Tel: 61 (2) 9351-6825;Fax: 61 (2) 9036-9121;E-mail: |