- 2019-present, Professor, Department of Economics, University of Tokyo
- 2017-2019, Associate Professor, Department of Economics, University of Tokyo
- 2015-2017, Chief Economist, Policy Research Institute, Ministry of Finance
- 2008-2015, Associate Professor, Institute of Innovation Research, Hitotsubashi University
- 2006-2008, Assistant Professor, Department of Economics, Carleton University
- 2004-2006, Assistant Professor, Department of Economics, Utah State University
- 2001-2004, Postdoctoral Fellow, Santa Fe Institute