[1] Huaqiao Univ, Inst Econ Dev & Reform, Xiamen, Fujian, Peoples R China
[2] Hefei Univ, Dept Econ, Hefei, Anhui, Peoples R China
[3] Mem Univ Newfoundland, Dept Econ, St John, NF, Canada
[4] Ft Hays State Univ, Dept Econ Finance & Accounting, Hays, KS 67601 USA
[5] Peking Univ, Natl Sch Dev, Beijing, Peoples R China