1. Department of Statistics, Feng Chia University, Taichung, Taiwan
2. School of Maritime Economics & Management, Dalian Maritime University, Dalian, People’s Republic of China
3. SMART Lab, Université de Tunis Institut Supérieur de Gestion de Tunis, Tunis, Tunisia
4. Department of Business Administration, Cheng Shiu University, Kaohsiung, Taiwan