1. School of Economics and Management, Harbin Engineering University, Harbin 150000, China
2. School of Economics and Management, Taishan University, Tai'an 271000, China
3. School of Business Administration, Huaqiao University, Quanzhou 362021, China
4. College of Economics and Management, Hebei Agricultural University, Baoding 071001, China
5. Department of Mathematics, Lahore Campus, Riphah International University, Lahore 54000, Pakistan