A cooperate research with banks conducted by Prof. Inoue grasped all flow of money in bank account and summarized results of the analysis. Since the data used in this research have high confidentiality, the research is unprecedented and quite epochal research. Yoshi Fujiwara, Hiroyasu Inoue, Takayuki Yamaguchi, Hideaki Aoyama, Takuma Tanaka, “Money flow network among firms’...