早稲田大学国際教養学術院 教授
Professor at School of International Liberal Studies (SILS)

国際情報通信研究科　教授（兼担）

Professor at Graduate School of Global Information and Telecommunications Studies (GITS)

Professor of Media Economics at School of International Liberal Studies and Doctor of Science in Global Information and Telecommunication Studies at Waseda University. He studied at School of Commerce and Graduate School of Commerce, Waseda University and earned MA at Cornell University. He was a Visiting Scholar at Harvard Institute for International Development, Harvard University,Swire Visiting Fellow at St. Antony’s College, Oxford University, UK, and Senior Adjunct Research Scholar at Columbia Institute for Tele-Information, Columbia Business School, Columbia University.

His scholarly interest focuses on industrial organization studies on media industry in the digital convergence age such as media concentration, digital convergence and public broadcasting in the Internet age. He organized with Prof. Martin Cave, LSE, an international study group which produced two publications from UK, and currently invloves in international project on ""Media Concentration around the World"" conducted by Prof. Eli Noam at Columbia University.