Funding for this research was provided by:
the National Social Science Fund Project (22CTJ002)
the National Statistical Science Research Project (2022LY007)
Article History
Received: 14 November 2024
Accepted: 25 July 2025
First Online: 15 August 2025
Statements and Declarations
:
: The authors declare no competing interests.
: The authors declare that they have no known competing financial interests or personal relationships that seem to affect the work reported in this article. We declare that we have no human participants, human data, or human tissues.
: We do not have any individual person’s data in any form.