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Authors
Iwasaki, Ichiro https://orcid.org/0000-0002-3196-2822
Ma, Xinxin
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Funding
Funding for this research was provided by:
Ministry of Education, Culture, Sports, Science and Technology of Japan (b151403m; 20H01489; 20H01512)
Joint Usage and Research Center of the Institute of Economic Research, Hitotsubashi University (FY2018)
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Article History
Received: 13 January 2020
Accepted: 10 October 2020
First Online: 14 December 2020
Competing interests
: The authors declare that they have no competing interests.
