Funding for this research was provided by:
National Foundation for Science and Technology Development (502.01-2020.308)
Article History
Received: 27 July 2022
Accepted: 25 April 2023
First Online: 11 June 2023
Declarations
:
: <i>Institutional Review Board Statement:</i> This study uses the data collected by the Financial Services Agency (FSA), the Bank of Japan. According to the FSA, prior to starting data collection, the FSA had obtained approval from the ethnic board at the Bank of Japan. Informed consent was obtained from all subjects involved in the study.
: The authors declare no competing interests.