Research Area

Main Research Area: Public Policies in the field of Information and Communications Technologies.

Papers, etc.

• Mitomo, Hitoshi, and Nobuyuki Tajiri, "Provision of universal service and access over IP networks in Japan," Telecommunications Policy, Vol. 34 Iss. 1-2, 2010, pp.98-109.
• Tajiri, Nobuyuki, "A Cross-Country Analysis of Factors Contributing to Broadband Diffusion," Studies in Regional Science Vol. 39 No. 3, 2009, pp.615-628, The Japan Section of the RSAI.
• Tajiri, Nobuyuki, Tokio Otsuka and Hitoshi Mitomo, "Benefit Evaluation of Universal Service in Telecommunications," Journal of Public Utility Economics, Vol. 61 No. 1, 2009, pp.37-49, The Japan Society of Public Utility Economics.(Japanese)
• Tajiri, Nobuyuki, "A Study of Factors Contributing to Broadband Diffusion and Their Policy Implications," Doctoral Thesis, Waseda University, February 2007. (Japanese)
• Tajiri, Nobuyuki, "Factors for Broadband Diffusion: Empirical Analysis with Cross-Country Data," Journal of Public Utility Economics, Vol.58, No.3, pp63-71, 2006. (Japanese)
• Tajiri, Nobuyuki,“Factors for Diffusion of Broadband and Roles of Unbundling Regulations in Japan,” Waseda University GITI/GITS Research Bulletin 2005-2006, pp.226-238, July 2006. (Japanese)
• Nakamura, Kiyoshi, and Nobuyuki Tajiri, "A Perspective on Digital Terrestrial Broadcasting in Japan," Cave, M. and K. Nakamura (eds), Digital Broadcasting: Policy and Practice in the Americas, Europe and Japan,　Edward Elgar, 2006, p.120-136.
• Tajiri, Nobuyuki, , Toshiya Jitsuzumi and Tsuyoshi Okazaki, "Policies for Broadband Diffusion in Developing Countries: A Case of Thailand, Journal of Information and Communications Research, Vol.24, No.1, pp.39-48, 2006. (Japanese)
• Tajiri, Nobuyuki, "International Standardization of Telecommunications Technologies: Its Significance and Japanese Government's Approach,", The IEICE Transactions on Communications (Japanese Edition), Vol.J89-B, No.2, pp.68-77, February 2006. (Japanese)
• Tajiri, Nobuyuki, "Regional Gaps in Development of Telecommunications Network in Japan: Their Current Status, Effects and Government Efforts," Studies in Regional Science, Vol.35, No.3, pp.743-752, December 2004-2005. (Japanese)
• Tajiri, Nobuyuki, "A Study on Indices to Evaluate Nations’ ICT Development," Waseda University GITI/GITS Research Bulletin 2004-2005, July 2005. (Japanese)
• Tajiri, Nobuyuki, Toshiya Jitsuzumi and Tsuyoshi Okazaki, "Thai no Broadband Jijo (Broadband in Thailand)," ITU Journal, Vol.35, No.8, pp40-43, the ITU Association of Japan, 2005. (Japanese)
• National Telecommunications Commission of Thailand, N.Tajiri, H. Mitomo, T.Jitsuzumi and T. Okazaki, "Final report for 'Development of Policy for Enhancing Broadband Access usign DSL Technology,'" HRD Programme for Exchange of ICT Researchers and Engineers, Asia-Pacific Telecommunity(APT), May 2005.
• Tajiri, Nobuyuki, "Progress of Asia Broadband Program," New Breeze, Vol. 16 No. 2, the ITU Association of Japan, Spring 2004.
• Tajiri, Nobuyuki, "BS Digital Hoso ni tsuite (On BS Digital Broadcasting)," ITU Journal,　vol.29 No.4 p.28-p.31, the ITU Association of Japan, 1999. (Japanese)

Recent Presentations at International Conferences, etc.

• Mitomo, Hitoshi, and Nobuyuki Tajiri, "Broadband in Rural Areas: Policies and Efforts for Achieving Full Diffusion of Broadband in Japan," 2nd Black Sea and Caspian Regulatory Conference, Istanbul, Turkey, June 22-23, 2007.
• Tajiri, Nobuyuki, and Tsuyoshi Okazaki, "Policies for Broadband Diffusion in Developing Countries", 16th Biennial Coference of the International Telecommunications Society, Beijing, China, June 2006.
• Tajiri, Nobuyuki, , Toshiya Jitsuzumi and Tsuyoshi Okazaki, "Broadband no Fukyu ni Muketa Seifu no Torikumi ni kansuru Kosatsu (A Study on Government Efforts towards Diffusion of Broadband)," the 22nd Conference of the Japanese Society of Information and Communication Research, Tokyo, June 25, 2006. (Japanese)
• Tajiri, Nobuyuki, "A Study on Factors Contributing to Broadband Diffusion," the 3rd Kanto Region Conference in 2006, the Japan Society of Public Utility Economics, Tokyo, March 2006. (Japanese)
• Tajiri, Nobuyuki, Tsuyoshi Okazaki and Toshiya Jitsuzumi, "Factors for Diffusion of Broadband and Policies in Developing Countries: Case of Thailand," Regional Science Association International (RSAI), International Symposium, Bangalore, India, January 2006.
• Tajiri, Nobuyuki, "Analysis of Broadband Market and Policy in Thailand," 19th Pacific Regional Science Conference (PRSCO), Tokyo, July 26, 2005.
• Tajiri, Nobuyuki, Toshiya Jitsuzumi and Tsuyoshi Okazaki, "Tojokoku ni okeru Broadband no Fukyu ni tsuite: Thai wo Jirei ni (On Diffusion of Broadband in Developing Countries: Case of Thailand)," the 22nd Conference of the Japanese Society of Information and Communication Research, Yokohama, June 26, 2005. (Japanese)
• The Following Presentations at the "Workshop on Development of Policy for Enhancing Broadband Access using DSL Technology" (Bangkok, April 19, 2005)
  ---- "Broadband and Policy/Regulation (History, Theory and Lessons from Other Countries)"
  ---- "Broadband in Japan: Regulation and Market" (regarding e-Japan Strategy)
  ---- "Broadband in Thailand: Views from Japanese Researchers"
• Tajiri, Nobuyuki, "Asia Broadband Program and its Progress", Waseda ICT Workshop 2004, Tokyo, November 22, 2004.
• Tajiri, Nobuyuki, "e-Government and ICT in Japan and Asia", Asia e-Government Forum, Tokyo, November. 9, 2004.
• Tajiri, Nobuyuki, "Discussion on　Future of e-Government,” CIO Workshop on e-Government Implementation Strategies for Success, Bangkok, September 2, 2004.
• Tajiri, Nobuyuki, "e-learning through the Asia Broadband Program", on e-university 2004, 3rd International Conference on ICT and Higher Education, Bangkok, September 1 2004.
• Presentation as a panelist at the symposium held by the Japan Section of RSAI, Tokyo, September 11, 2004. (Japanese)

Grants for Research

• "A study on competition policies in the era of broadband", International Communications Research Grant, International Communications Foundation, 2006.
• "Factors for the diffusion of broadband and the role of government in Japan," The Telecommunications Advancement Foundation, 2005.
• "Research on Measures for Diffusion of Broadband towards Developing Economy/Society and Narrowing the Digital Divide in Thailand," SMBC Foundation, 2005.
• "Development of Policy for Enhancing Broadband Access usign DSL Technology", an international joint project with the National Telecommunications Commission (NTC) of the Thai Government, Prof. H.Mitomo (GITS, Waseda University), Prof.T. Jitsuzumi (Kyushu University) and Prof. T. Okazaki (University of Tokyo), HRD program, Asia-Pacific Telecommunity (APT).Fall 2004 to April 2005.