We gratefully acknowledge the support of the following organizations.
Center for Experimental Research in Social Sciences (CERSS), Hokkaido University
City of Shimonoseki & Shimonoseki-shi Tourism Policy Division
Grants-in-Aid for Scientific Research (KAKENHI), Japan Society for the Promotion of Science
Human Behavior & Evolution Society of Japan (HBES-J)
Nakatsuji Foresight Foundation
Yamaguchi Prefecture (Oide Mase Yamaguchi e)
