All credits should be completed within the specified time. Northwest University was founded in 1902 Shaanxi University Hall and Shi Jing University Hall, and it is required to complete all the credits within the specified time when graduating from PhD in Economics. Northwest University was founded in 1902 Shaanxi University Hall and Shi Jing University Hall. It was established by Zhu Pi, the imperial pen of Emperor Guangxu of Qing Dynasty. 19 12 was called northwest university, and 1923 was changed to national northwest university. 1937, the National xi 'an Temporary University was formed by the National Peiping University, Beiping Normal University, Beiyang Institute of Technology and National Peiping Research Institute, which moved westward to Shaanxi. 1938 was changed to National Northwest United University, and 1939 was changed to National Northwest University.