[1] Aoyama Gakuin Univ, Coll Econ, 4-4-25 Shibuya,Shibuya Ku, Tokyo 1508366, Japan
[2] Res Inst Econ Trade & Ind RIETI, 1-3-1 Kasumigaseki,Chiyoda Ku, Tokyo 1008901, Japan
[3] Kyoto Univ, Project Ctr, Grad Sch Econ, Sakyo Ku, Yoshida Honmachi, Kyoto 6068501, Japan
[4] Kyoto Univ, Grad Sch Econ, Sakyo Ku, Yoshida Honmachi, Kyoto 6068501, Japan