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Authors
Yang, Lijuan http://orcid.org/0000-0003-2042-6431
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Funding
Funding for this research was provided by:
National Social Science Fund of China (21FJLB039)
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Article History
Received: 25 September 2023
Accepted: 25 April 2024
First Online: 6 May 2024
Declarations
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: All analyses were based on public data from the World Bank; no ethical approval or informed consent was required.
: Not applicable.
: The author declares that they have no competing interests.
