Kazuo Mino Kyoto University   Institute of Economic Research, Kyoto University Yoshida Honmachi, Sakyo-ku Kyoto, Japan Kyoto, 662-0062 Japan   mino.kazuo.2u@kyoto-u.ac.jp             JEL Areas: E6 : Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General O3 : Technological Change; Research and Development: General