Tsukasa is a professor in Osaka University of Commerce, faculty of commerce. He has a Doctor’s degree in commerce from Osaka City University. He is the recipient of Grant-in-Aid for Scientific Research(C) of Japan Society for the Promotion of Science (JSPS).He is a chairman of the wholesale market committee in Osaka city. He researches distribution systems and policy, specialized in small-sized retailers in the local area, publishing several books.