AMBASHI Masahito

AMBASHI Masahito

AMBASHI Masahito

Consulting Fellow

Economist, Economic Research Institute for ASEAN and East Asia (ERIA)

Activities at RIETI


Industrial Organization, Applied Microeconomics, Applied Econometrics, Innovation and Technology, Economic Development (Asian Economy)


2017 Ph.D. in Economics, University of Essex
2012 MSc in Economics, University of Essex
2004 M.A. in Economics, Kyoto University
2002 B.A. in Economics, Kyoto University


2015 Economist, Economic Research Institute for ASEAN and East Asia (ERIA)
2014 Deputy Director, WTO Compliance and Dispute Settlement, Multilateral Trade System Department, Trade Policy Bureau, Ministry of Economy, Trade and Industry (METI)
2011 Doctoral Research, University of Essex
2010 Deputy Director, Asia and Pacific Division, Trade and Policy Bureau, METI
2008 Economic Outlook Division, Economic and Fiscal Management Bureau, Cabinet Office
2007 Energy Strategy Office, Agency for Natural Resources and Energy
2006 Policy Evaluation and Public Relations Division, Minister's Secretariat, METI
2004 Macro Economic Affairs Division, Economic and Industrial Policy Bureau, METI

Selected Publications and Papers

Refereed Papers

  • Ambashi, M. (2017), "Competition Effects and Industrial Productivity: Lessons from Japanese Industry," Asian Economic Papers, forthcoming.
  • Ida, T. and Ambashi, M. (2008), "Analysis of Vertical Separation of Regulators under Adverse Selection," Journal of Economics, Vol.93 (1), pp. 1-29.


  • Nishimura, H., Kimura, F., Ambashi, M., and Keola, S. (2016), Lao PDR at the Crossroads: Industrial Development Strategies 2016–2030, Economic Research Institute for ASEAN and East Asia (ERIA), Jakarta.

Other Papers

  • Ambashi, M. (2017), "ASEAN as an FDI Attractor: How Do Multinationals Look at ASEAN?" ERIA Working Papers PB-2016-04, Economic Research Institute for ASEAN and East Asia (ERIA).
  • Ambashi, M. (2017), "Innovation Policy in/for ASEAN: Introduction," mimeo.
  • Kimura, F., Chen, L., Iliuteanu, M. A., Yamamoto, S., and Ambashi, M. (2016), "TPP, IPR Protection, and their Implications for Emerging Asian Economies," ERIA Working Papers PB-2016-02, Economic Research Institute for ASEAN and East Asia (ERIA).
  • Ambashi, M. (2017), "Technology Competition, Cumulative Innovation, and a Grant-Back Clause," mimeo.
  • Ambashi, M. (2017), "Grant-Backs and Attributes of Innovation," mimeo.
  • Ambashi, M. (2017), "Theory and Empirics of University Research and Teaching: Can We Always Increase University Research Output and Student Enrollment?" mimeo.
  • Ambashi, M., Regibeau, P., Rockett, K. (2014), "Grantbacks, Territorial Restraints and the Type of Follow-On Innovation: The 'But for...' Defence," Charles River Associates Working Paper.
  • Ambashi, M. (2013), "Does Competition Improve Industrial Productivity?: An Analysis of Japanese Industries on the Basis of Industry-Level Panel Data," RIETI Discussion Paper Series 13-E-098.
  • Ambashi, M. and Kimura, S. (2006), "Realization of the Steady Macro Economy in Japan: Fiscal and Monetary Policy Supporting Sustainable Economic Growth led by Private Demand," Macro Economic Affairs Division, Working Paper. (in Japanese)
  • Ambashi, M. and Ida, T. (2004), "An Estimation of Switching Costs in Japan's Broadband Markets with the Extended Shy Model," InfoCom Review, Vol. 35. (in Japanese)