First Author:   Baotai Wang University of Northern British Columbia wangb@unbc.ca   Department of Economics, University of Northern British Columbia, 3333 University Way Prince George, V2N 4Z9, Canada   (250)960-6489(Phone) (250)960-6489(Fax) http://www.unbc.ca/ Second Author: D. Ajit University of Northern British Columbia dayanana@unbc.ca   University of Northern British Columbia, University of Northern British Columbia, 3333 University Way Prince George, V2N 4Z9, Canada   (250)960-6484(Phone) (250)960-5545(Fax) http://www.unbc.ca/