Regional Economics, Regional Cluster, Innovation Policy, Tax System

1989 B.A. in Economics, The University of Tokyo
1997 M.A. in International Economics and Finance, Brandeis University
2003 Doctor of Engineering, The University of Tokyo

1989 Staff Economist, International Trade Research Office, METI
2001-2002 Team Leader, Regional Economic Research, METI
2002-2004 Deputy Director, Corporate Affairs Division, METI
2003 Visiting Assistant Professor, School of Economics, Kyushu University
2004-2005 Deputy Director, Budget and Accounts Division, METI
Visiting Associate Professor, Kyushu University
Visiting Lecturer, Faculty of Engineering, The University of Tokyo
2005-2006 Deputy Director, Economic and Industrial Policy Division, Economic and Industrial Policy Bureau, METI
2006-2008 Special Assistant to Director General, Economic and Industrial Policy Bureau, METI
2008-present Professor, Todai Policy Alternative Research Institute

I.Sakata and Y.Kajikawa
"Regional industrial structure from a network perspective: discovery of small world"
Hitotsubashi Business Review 56(5) (2009) 66-79

I.Sakata, Y.Kajikawa, Y.Takeda, M. Hashimoto and K.Matsushima,
"Industrial networks and the role of Universities - A case study of the manufacturing industry at Nagano prefecture"
Development Engineering 15 (2009) 37-48

Y. Takeda, Y. Kajikawa, I. Sakata, and K. Matsushima
"An analysis of geographical agglomeration and modularized industrial networks in a regional cluster: A case study at Yamagata prefecture in Japan"
Technovation 28 (2008) 531-539.

I. Sakata, K.Fujisue and Y. Okumura
"Do R&D and tax credits work? :Evaluation of the Japanese tax reform"
International Journal of Technology Management(IJTM)32 nos3/4 (2005) 277-287

N. Shibata, Y. Kajikawa, Y. Takeda, I. Sakata, and K. Matsushima
"Early detection of innovations from citation networks"
IEEE International Conference on Industrial Engineering and Engineering Management 2009 (IEEM2009) in Hong Kong. (December 8-11, 2009).

J. Mori, Y. Kajikawa and I. Sakata
"Analyzing inter-firm networks for enhancing large-scale regional clusters"
IEEE International Conference on Industrial Engineering and Engineering Management 2009 (IEEM2009) in Hong Kong. (December 8-11, 2009).

Y. Kajikawa, M. Hashimoto, I. Sakata, Y. Takeda, and K. Matsushima
"Academic landscape of innovation research and national innovation system policy reformation in Japan and the U.S."
Portland International Conference on Management Engineering and Technology 2009 (PICMET'09) in Portland, U.S.A. (August 2-6, 2009).

N. Shibata, Y. Kajikawa, Y. Takeda, I. Sakata, and K. Matsushima
"Detecting emerging research fronts in regenerative medicine by citation network analysis of scientific publications"
Portland International Conference on Management Engineering and Technology 2009 (PICMET'09) in Portland, U.S.A. (August 2-6, 2009).

Y. Kajikawa, S. Fujimoto, Y. Takeda, I. Sakata, and K. Matsushima
"Detection of emerging research fronts in solar cell research"
12th International Conference on Scientometrics and Informetrics (ISSI2009), in Rio de Janeiro, Brazil (14-17, July, 2009).

Y. Takeda, N. Shibata, Y. Kajikawa, I. Sakata, and K. Matsushima
"Tracking modularity in citation networks"
12th International Conference on Scientometrics and Informetrics (ISSI2009), in Rio de Janeiro, Brazil (14-17, July, 2009).

N. Shibata, Y. Kajikawa, Y. Takeda, I. Sakata, and K. Matsushima
"Detecting emerging core papers in solar cell by citation network analysis of scientific publications"
The 18th International Conference for Management of Technology (IAMOT2009), in Florida, U.S.A. (5-9, April, 2009).

Y. Kajikawa, Y. Takeda, I. Sakata, and K. Matsushima
"Structure of interfirm networks in Hamamatsu optoelectronics cluster"
The 18th International Conference for Management of Technology (IAMOT2009), in Florida, U.S.A. (5-9, April, 2009).

Y. Kajikawa, Y. Takeda, I. Sakata, and K. Matsushima
"Interfirm networks of regional clusters in Japan"
IEEE International Technology Management Conference (TMC-Japan 2008), in Tokyo, Japan (12-13 October, 2008).

Y. Kajikawa, Y. Takeda, I. Sakata, and K. Matsushima
"Structure of Interfirm networks in regional clusters"
Portland International Conference on Management Engineering and Technology 2008 (PICMET'08) in Cape Town, South Africa, (July 27 - 31, 2008).

K. Fujisue, M. Eto, and I. Sakata
"Comparative Analysis of Research and Development Environment in the Universities of Japan and the USA"
Portland International Conference on Management Engineering and Technology 2002 (PICMET'02) in Portland USA

I. Sakata
"Engineering approach to assist the development of national innovation system"
East Asia Innovation Policy Conference 2008 (EAIC'08), in Tokyo (November 27-28, 2008)