Xiaohui Tian Renmin University of China   Room 919 Mingde Main Building 59 Zhongguancun St. Beijing, Beijing 100872 China   tianxiaohui@ruc.edu.cn             JEL Areas: E6 : Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General H3 : Fiscal Policies and Behavior of Economic Agents: General