1. National Academy of Economic Security, Beijing Jiaotong University, Beijing 100044, China
2. Beijing Laboratory of National Economic Security Early-Warning Engineering, Beijing Jiaotong University, Beijing 100044, China
3. Postdoctoral Programme of China Centre for Industrial Security Research, Beijing Jiaotong University, Beijing 100044, China
4. School of Marxism, Beijing Normal University, Beijing 100091, China