Tsutomu Fujita is a visiting professor at the School of Business Administration, Hitotsubashi University Business School, and the representative of the Hitotsubashi University Graduate School Fintech Research Forum. He completed his doctorate in Business Law at the Graduate School of International Corporate Strategy, Hitotsubashi University, and has held prominent positions, such as director and vice chairman of Citigroup Global Markets Japan Inc., member of multiple advisory groups within the Japanese government, a research fellow at the Center for Japanese Studies at Peking University, and lecturer at Keio University. He is among the top-ranked Japanese stock strategists for the five consecutive years until 2010. He has written numerous books, and his recent works include World History for Understanding Finance (Kinzai Institute for Financial Affairs, Inc.), The Shock of the Fintech Revolution, and What Actually Is a Bubble Economy? (both Heibonsha Limited, Publishers).