1 Discrete Choice Model Analysis of Mobile Telephone Service Demand in Japan Takanori Ida Graduate School of Economics, Kyoto University Yoshida, Sakyoku, Kyoto 606-8501, Japan and Toshifumi Kuroda Graduate School of Economics, Kyoto University Yoshida, Sakyoku, Kyoto 606-8501, Japan Correspondence: Takanori Ida Graduate School of Economics, Kyoto University Yoshida, Sakyoku, Kyoto 606-8501, Japan Tel & Fax: +81- 75-753-3477 E-mail: ida@econ.kyoto-u.ac.jp