Kobe University Monograph Series in Social
Science Research
Series Editor
Takashi Yanagawa, Professor, Kobe University Graduate School of Economics,
Kobe, Japan
Editorial Board
Masahiro Enomoto, Kobe University RIEB, Kobe, Japan
Kenji Yamamoto, Kobe University Graduate School of Law, Kobe, Japan
Yoshihide Fujioka, Kobe University Graduate School of Economics, Kobe, Japan
Nobuhiro Sanko, Kobe University Graduate School of Business Administration,
Kobe, Japan
Yuka Kaneko, Kobe University Graduate School of International Cooperation
Studies, Kobe, Japan