Yang, Hongyan
Li, Lin
Jiang, Wenjing
Yang, Yang
Sun, Mengxin
Yao, Qiang
Funding for this research was provided by:
the self-set project of the Key Research Institute of Humanities and Social Sciences of the MOE (24JDZS01)
the General Program of the National Natural Science Foundation of China (72274145)
Article History
First Online: 21 August 2025
Competing interests
: The authors declare no competing interests.
: Not applicable.
: The data used in this paper is based on secondary data, which has already been collected by Peking University. Therefore, I do not have any informed consent.