Linrong Zhang School of Finance and Economics, Jiangsu University, Zhenjiang, 212013, People's Republic of China   School of Finance Finance and Economics, Jiangsu University Zhenjiang, Jiangsu Province 212013 China   zlrdtc@126.com             JEL Areas: G1 : General Financial Markets: General (includes Measurement and Data) N4 : Economic History: Government, War, Law, and Regulation: General, International, or Comparative