1. Department of Business, National Open University, No. 172, Zhongzheng Rd., Luzhou Dist., New Taipei City 24701, Taiwan
2. Department of Finance, Minghsin University of Science and Technology, No. 1, Xinxing Rd., Xinfeng Hsinchu 304001, Taiwan
3. Department of International Trade, Chinese Culture University, No. 55, Hwakang Road, Yangmingsan, Taipei 11114, Taiwan