Zhao Yanyun, the PhD supervisor, is a professor at the School of Statistics, Renmin University of China, director of the Center for Competitiveness and Evaluation Research, at the Renmin University of China, advisor to the China Statistical Society, advisor to the China National Economic Accounting Research Society, and president of the Higher Education Branch of the China Society for Statistics Education. His main professional specialities include international competitiveness, national economic accounting and input-output analysis, macroeconomic statistical analysis, Internet statistics and big data applications. He has published more than 300 papers in academic journals at home and abroad, completed more than 70 research projects at home and overseas, and 2 invention patents. He enjoys the special allowance for government experts issued by the State Council.