Li Zhinqiang is an associate professor in the School of Mathematics and Statistics, Guangdong University of Finance and Economics, Guangzhou, Ghina. He got his Ph.D. in World Economy from Lingnan College in Sun Yat-Sen University. He served as director of the Department of Calculus and the Department of Algebra Probability. He has mainly engaged in teaching calculus, linear algebra, probability theory and mathematical statistics for a long time. His research focusses Economics, especially in market failures and the transition of competition. He published “The Topology Method and Applied Economics”, “Economics and the Topological Method” and “The Homology Method and Cost Theory” and other 10 academic papers.