1. Department of Economics, College of Business and Administration, Princess Nourah Bint Abdulrahman University, Riyad, Saudi Arabia
2. Department of Business Administration, College of Business and Administration, Princess Nourah Bint Abdulrahman University, Riyad, Saudi Arabia
3. Department of Science and Technology, Mathematics Program University College, Rania Taif University, Taif, Saudi Arabia
4. Department of Mathematics, College of Science, Taif University, Taif, Saudi Arabia