1. School of Humanities and Social Sciences, Beijing Institute of Technology , No. 5, Zhongguancun Street, China, Beijing 100081, China
2. School of Public Policy & Management, Tsinghua University , No. 30, Shuangqing Road, Beijing 100084, China
3. School of Agriculture and Rural Development, Renmin University of China , No. 59, Zhongguancun Street, Beijing 100872, China
4. Center for China Fiscal Development, Central University of Finance and Economics , Shahe Higher Education Park, Beijing 102206, China