Firpo, Sérgio Pinheiro (contributor) - 2004 - [Electronische Ressource]
Department of Economics
University of British Columbia
January 2004
Discussion Paper No.: 04 …-01
DEPARTMENT OF ECONOMICS
THE UNIVERSITY OF BRITISH COLUMBIA
VANCOUVER, CANADA V6T 1Z1
http://www.econ.ubc.ca
E� cient … errors are mine.
yThe University of British Columbia, Department of Economics, #997-1873 East Mall, Vancouver, B. C.,
Canada …