1. School of Humanities and Law, Northeastern University, Shenyang, China; School of Economics Northeastern University at Qinhuangdao Qinhuangdao China
2. School of Economics Northeastern University at Qinhuangdao Qinhuangdao China
3. School of Business Administration, Northeastern University, Shenyang, China; School of Economics Northeastern University at Qinhuangdao Qinhuangdao China
4. School of Economics Shandong University Jinan China
5. Center for China Public Sector Economy Research of KRI Jilin University Changchun China
6. School of Economics Jilin University Changchun China