Chia-Hui Lu National Taipei University, Department of Economics   151, University Rd., San-Shia, New Taipei, 23714 Taiwan   chiahuilu.chlu@gmail.com   http://web.ntpu.edu.tw/~chlu/           JEL Areas: E6 : Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General D6 : Welfare Economics: General