Akiko Manabe
Faculty of Economics
Shiga University
1-1-1 Banba, Hikone, Shiga, 522-8522 Japan
Tel: +81 90-3713-6101
Yoshiko Eryu
The Institute for Economic and Business Research
Shiga Universiry
1-1-1 Banba, Hikone, Shiga, 522-8522 Japan
Tel: +81 749-27-1047
