1. Graduate School of Human-Environment Studies, Kyushu University, Fukuoka, Japan
2. Faculty of Science and Engineering, Waseda University, Tokyo, Japan
3. Faculty of Arts and Science, Kyushu University, Fukuoka, Japan
4. Japan Society for the Promotion of Science, Tokyo, Japan
5. School of Ethnology and Sociology, Yunnan University, Kunming, China
6. Institute of Decision Science for a Sustainable Society, Kyushu University, Fukuoka, Japan