1. Department of Policy Management Keio University Kanagawa Japan
2. Department of Epidemiology and Social Medicine Graduate School of Public Health International University of Health and Welfare Tokyo Japan
3. Institute of Industrial Ecological Sciences University of Occupational and Environmental Health, Japan Fukuoka Japan
4. Graduate School of Information Science and Electrical Engineering Kyushu University Fukuoka Japan
5. Faculty of Education and Integrated Arts and Sciences Waseda University Tokyo Japan
6. Graduate School of Economics The University of Tokyo Tokyo Japan
7. Faculty of Business and Commerce Keio University Tokyo Japan