First Author:   Chen Fang Department of International Trade, Takming University of Science and Technology, Taiwan schwartz@takming.edu.tw   No.56, Sec.1, Huanshan Rd. Taipei, 11451   +886-2-26585801 ext 5207(Phone) +886-2-26585801 ext 5207(Fax) Second Author: Cheng-te Lee Department of International Trade, Chinese Culture University, Taiwan lzd4@faculty.pccu.edu.tw