- 1989 - 2001 Hitotsubashi University, Professor
- 1981 - 1989 Hitotsubashi University
- 1981 - 1989 Hitotsubashi University, Assistant Professor
- 1989 - - 一橋大学 教授
- 1980 - 1981 Hitotsubashi University
- 1980 - 1981 Hitotsubashi University, Lecturer
- 1979 - 1980 Hitotsubashi University
- 1979 - 1980 Hitotsubashi University, Research Assistant
- Hitotsubashi University Graduate School of Social Sciences Professor
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