1. Wang X., Xia X., Jingji Yanjiu [J. Econ. Res.] 1999 (9), 22 (1999).
2. Au C.-C., Henderson J. V., Rev. Econ. Stud. 73, 549 (2006).
3. Wang X., in Rising China: Global Challenges and Opportunities, , Golley J. , Song L. G. , Eds. (Australian National Univ. E Press, Canberra, 2011), pp. 315–327.