- 2003/04 - 2016/03 Prof., Graduate School of Environmental Management, Hosei Univ.
- 2012/04 - 2013/03 在外研修 中国および英国
- 2012/04 - Prof., Graduate School of Social Governance, Hosei Univ.
- 2006/04 - 2007/03 Visiting Researcher at the Univ.of the West of England (Bristol) and the Istanbul Technical Univ.
- 1999/04 - Prof., Faculty of Humanity and Environment, Hosei Univ.
- 1997/04 - 1999/03 Prof. Center of Business Information and Research, Graduate School of Business Administration, Hosei Univ.
- 1973/04 - 1997/03 The Development Bank of Japan
- 1987/07 - 1996/03 Senior Researcher, The Japan Economic Research Institute
- 1991/04 - 1994/03 Part-time Lecturer, Notre-Dame Seishin Womens Junior College
- 1990/04 - 1991/03 Visiting scholar, The Brookings Institution, Washington D.C.
- 1979/04 - 1980/03 Trainee, International Development Center of Japan
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