The internal audit time of Ph.D. in Applied Economics in Central South University is 1-2 months. According to official website of Central South University, the internal review of doctoral dissertations in applied economics requires at least two or more experts to review the dissertations, and experts usually need to review several dissertations at the same time. In a busy situation, it may take more time to complete the examination of the paper. The internal audit time of doctoral thesis is about 1-2 months. Central South University, located in the southern foot of Lushan Mountain, Yuelu District, Changsha City, Hunan Province, China, was founded in 1952. It is a comprehensive university supported by the national "2 1 1 Project" and "985 Project", and it is also the only university in the central and western regions that has been selected as a national "double-class" world-class discipline construction university.