First Author:   Yeung-Nan Shieh San Jose State University ynshieh@yahoo.com   Department of Economics, San Jose State University San Jose, 95192-0114, USA   408-924-5413(Phone) 408-924-5413(Fax) Second Author: Chiou-Nan Yeh Alabama State University cyeh@asunet.alasu.edu   Department of Business Administration, Alabama State University Montgomery, 36101, USA   334-229-4127(Phone)