Cui, Fang
Hu, Haihua
Xie, Ying
Funding for this research was provided by:
National Project of the Key Research Base for Philosophy and Social Sciences in Shaanxi (ID:18JZ037)
Natural Science Foundation of China (71802158, 71502070)
Shaanxi Social Science Fund (2018S42)
Special research projects of Shaanxi Provincial Department of Education (739)
Northwestern University National Social Science Fund project incubation project (17XNFH060)
Article History
Received: 6 September 2020
Accepted: 18 November 2020
First Online: 3 January 2021
Compliance with ethical standards
:
: The authors declare that they have no competing interests.