Article History
Received: 29 July 2023
Accepted: 18 March 2024
First Online: 2 April 2024
Competing interests
: The authors declare no competing interests.
: This study was conducted with the ex-ante approval of the Ethics Committee of the Graduate School of Economics, Osaka University, and all methods were carried out in accordance with the relevant guidelines and regulations. The Principal Investigator is Prof. Ohtake. The ethics approval number of this study is R021014.
: Informed consent for study participation was obtained from all subjects.