1. Department of Economics, Aoyama Gakuin University, Tokyo
2. Graduate School of Applied Informatics, University of Hyogo, Kobe
3. Osaka School of International Public Policy, Osaka University, Osaka
4. Biomedical Engineering Research Organization, Tohoku University, Sendai
5. Kyoto University of Education, Kyoto
6. Faculty of Urban Science, Meijo University, Kani, Japan