- 1998 - 2007 Kanto Gakuin University College of Economics
- 1998 - 2007 Associate Professor, Faculty of Economics, Kanto
- 2007 - - 関東学院大学経済学部 教授
- 2007 - - Professor, Faculty of Economics, Kanto Gakuin
- 1995 - 1998 Kanto Gakuin University College of Economics
- 1995 - 1998 Lecturer, Faculty of Economics, Kanto Gakuin
- 1993 - 1995 Kyushu University School of Economics
- 1993 - 1995 Research Associate, Faculty of Economics,
- Gakuin University
- University
- Kyushu University
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