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Authors
Liu, Meng-Yao
Zhao, Pei-Jun
Yan, Bin
Pan, Jeng-Shyang
Yang, Hong-Mei
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Funding
Funding for this research was provided by:
Natural Science Foundation of Shandong Province (No. ZR2021MF050)
Humanities and Social Science Fund of Ministry of Education of China (No. 18YJAZH110)
National Bureau of Statistics of China (No. 2021LY082)
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Article History
Received: 28 January 2025
Revised: 22 March 2025
Accepted: 4 April 2025
First Online: 8 May 2025
Declarations
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: The authors declare that they have no conflict of interest.
