1. College of Business Chung Yuan Christian University Chung‐Li Taiwan, Republic of China
2. National Taiwan University of Science and Technology Taipei Taiwan, Republic of China
3. Department of Business Administration Chihlee University of Technology New Taipei City Taiwan, Republic of China
4. Departments of Applied Mathematics and Business Administration Chung Yuan Christian University Chung‐Li Taiwan, Republic of China
5. Department of Applied Mathematics Chung Yuan Christian University Chung‐Li Taiwan, Republic of China
6. Department of Mathematics and Statistics University of Victoria Victoria British Columbia Canada
7. Department of Medical Research, China Medical University Hospital China Medical University Taichung Taiwan, Republic of China
8. Department of Mathematics and Informatics Azerbaijan University Baku Azerbaijan