Institution: | 1. Department and Graduate Institute of Business Administration , Yuanpei University , 306, Yuanpei St, Hsin Chu, 30015, Taiwan, R.O.C alexru00@ms41.hinet.net;3. Graduate School of Management , Ming Chuan University , 250, Section 5, Chung Shan North Road, Taipei, 11103, Taiwan, R.O.C;4. Department of Business Administration , National Taiwan University of Science and Technology , 43, Sec 4 Keelung Rd, Taipei, 106, Taiwan, R.O.C |