1. School of Statistics and Applied Mathematics Anhui University of Finance and Economics Bengbu PR China
2. Faculty of Economics, Széchenyi Istvàn University Győr Hungary
3. School of Finance Anhui University of Finance and Economics Bengbu PR China
4. Faculty of Economics and Management, Department of Economics University of Ain Temouchent Ain Temouchent Algeria
5. Faculty of Management Rzeszow University of Technology Rzeszów Poland
6. Department of Management College of Business Administration, King Saud University Riyadh Saudi Arabia