Full Length Research Paper
Authors
Yasuo Ishii
Department of Management Design, Faculty of Business Administration, Osaka International University, 3-50-1, Sugi, Hirakata, Osaka 573-0192, Japan.
Keiko Nagata
Department of Economics, Osaka Prefecture University, 1-1 Gakuenc305-701, Naka-ku, Sakai, Osaka 599-8531, Japan.
Kazuhiro Takeyasu
Fuji-Tokoha University, 325 Oobuchi, Fuji City, Shizuoka 417-0801, Japan
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