Affiliation: | 1. School of Economics, Kwansei Gakuin University, 1-155 Ichiban-cho Uegahara Nishinomiya, Hyogo, 662-8501, Japan;2. Graduate School of Commerce and Management, Hitotsubashi University, 2-1 Naka, Kunitachi, Tokyo, 186-8601, Japan;3. Department of Economics, University of California-Berkeley, 530 Evans Hall #3880, Berkeley, CA 94720, USA;4. Graduate School of Economics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan |