Kazuki Hiraga Keio University   2-15-45 Mita 2-15-45 Mita Minato-ku, Tokyo 108-8345 日本   khiraga581470@gmail.com             JEL Areas: E6 : Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General H3 : Fiscal Policies and Behavior of Economic Agents: General