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Authors
Kubo, Yoshiaki https://orcid.org/0000-0002-3946-916X
Okada, Isamu
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Article History
Received: 7 December 2021
Accepted: 30 August 2022
First Online: 9 September 2022
Competing interests
: The authors declare no competing interests.
: Institutional review boards approved this study at Ritsumeikan University (#衣笠-人-2020-35), Institute of Developing Economies, Japan External Trade Organization (IDE-JETRO), and the University of the Ryukyus (#32), Japan.
: All participants provided informed consent via mouse click after reading an information section that was approved by the institutional review boards. Participants could withdraw from the study at any time by closing the browser tab at any point.
