Address: 12-5, Goban-cho, Chiyoda-ku, Tokyo 102-8251, Japan.
E-mail: 
Visiting Associate Professor, National Graduate Institute for Policy Studies (GRIPS), April 2005-present.
Visiting Lecturer, International Christian University, April 2005-March 2007.
Research Fellow, Population Research Institute, Nihon University (NUPRI), October 2005-present.
Fellow, Center for Japanese Business Studies, Hitotsubashi University, June 2006-March 2008.
Expert Member, Council for the Promotion of Regulatory Reform, Cabinet Office, October 2007-March 2010.
Research Advisor, National Institute for Research Advancement (NIRA), August 2008-March 2009.