My research fields are seemingly disparate, but I am quantitatively investigating the impact of digitization on the economy and society. To make it easier to understand my background, let me summarize conclusions of my research. “As for Copyright? -> Loosen up, look at my latest paper, ‘The ultimate copyright system that I have thought up’ “, “Personal information? -> There is a good way to protect and use it at the same time, come and see me. “Entertainment industry? -> Giving contents away for free is a good way to make money”, “Platform industry? -> They are already big, so let’s think about everyone else’s needs”, “Internet and democracy? -> People say the Internet is dividing society, but don’t worry, the Internet will make society better! I have some good ideas.” Please feel free to contact me if you would like to hear more on the above.　Have paper – will travel

Brief History

1988 Research Fellow, Policy Planning Forum
1991 – 1995 Research Fellow, GLOCOM, International University of Japan; Research Associate, International University of Japan
1995 – 1998 Visiting Scholar, Columbia University
1998 – 1999 Full-time Lecturer, Keio University, Faculty of Economics
1999 – 2018 Associate Professor (Faculty of Economics), Keio University
2018 – 2023 Professor (Faculty of Economics), Keio University
2023 – Professor, Yokohama College of Commerce(-Present)

Major Works