1. Associate Professor, School of Economics, Nanjing University of Finance and Economics, No.3 Wenyuan Road, Xianlin College Town, Nanjing, 210023, China P.R.
2. Associate Professor, College of Economics and Management, Nanjing University of Aeronautics and Astronautics, No. 29 Jiangjun Road, Jiangning District, Nanjing, 211106, China P.R.
3. Professor, School of Economics, Beijing Technology and Business University, 33 Fucheng Road, Haidian District, Beijing, 102488, China P.R.