Yutaka Kosai (1933–2018) was a Japanese economist. After graduating from the University of Tokyo’s Faculty of Economics, he joined the Economic Planning Agency and later served as a professor at the Tokyo Institute of Technology, president and chairman of the Japan Center for Economic Research, head of the Economic and Social Research Institute, and chairman of the government’s Tax Commission. He received the Suntory Prize for Social Sciences and Humanities in 1980 for his contributions to the analysis and outlook of the Japanese economy. In his representative work, "Kōdo Seichō no Jidai: Gendai Nihon Keizaishi Nōto," Kosai traces Japan’s economy from postwar reconstruction through rapid growth, the revaluation of the yen, the oil crisis, and the transition to slower growth, examining the roles of technological change, international conditions, corporate behavior, markets, and public policy.
