Masahiko Aoki is the Henri and Tomoye Takahashi Professor Emeritus of Japanese Studies in the Economics Department, and Senior Fellow of Stanford Institute of Economic Policy Research (SIEPR) and Freeman Spogli Institute for International Studies (FSI) at Stanford University. He is also the Dirctor of the Virtual Center for Advanced Studies in Institution (VCASI) at Tokyo Foundation. He is a theoretical and applied economist with a strong interest in institutional and comparative issues. His preferred field covers the theory of institution, corporate governance, the Japanese economies.

Aoki's most recent book, Toward a Comparative Institutional Analysis, was published in 2001 by MIT Press. This work develops a conceptual and analytical framework for integrating comparative studies of institutions in economics and other social sciences based on game-theoretic apparatus. His research has been also published in the leading journals in economics, including the American Economic Review, Econometrica, the Quarterly Journal of Economics, Review of Economic Studies, the Journal of Economic Literature and Industrial and Corporate Change.

Aoki is currently President of the International Economic Association (2008~2011) and was a former President of the Japanese Economic Association. He is a Fellow of the Econometric Society and the founding editor of the Journal of Japanese and International Economies. He was awarded the Japan Academy Prize in 1990, and the 6th International Schumpeter Prize in 1998. Between 2001 and 2004, Aoki served as the President and Chief Research Officer (CRO) of the Research Institute of Economy, Trade and Industry (RIETI), an independent administrative institution specializing in public policy research in Japan .

Aoki graduated from the University of Tokyo with a BA and an MA in economics and earned a Ph.D. in economics from the University of Minnesota in 1967. He was formerly an assistant professor at Stanford University and Harvard University and served as both an associate and full professor at the University of Kyoto before re-joining the Stanford faculty in 1984 after sixteen years of absence.  He became Professor Emeritus in 2004 to concentrate on research as well as be engaged in various international activities.