Yoshi FUJIWARA is Professor of the Graduate School of Simulation Studies, University of Hyogo. He received his Ph.D. from the Tokyo Institute of Technology in 1992 and studied general relativity and quantum cosmology at the Yukawa Institute as a postdoctoral fellow. He was a visiting researcher at the Institute of Theoretical Physics, University of California, Santa Barbara. He was engaged in research in econophysics at the Department of Economics, Università Politecnica delle Marche, Italy.