Li, Meixuan
Yan, Chun
Liu, Wei
Liu, Xinhong
Zhang, Mengchao
Xue, Jiankai
Funding for this research was provided by:
the project of National Bureau of Statistics of China (2019LZ10)
the Project of National Natural Science Foundation of China (61502280, 61472228)
The General project of science and Technology Plan of Beijing Municipal Commission of Education (KM202010017001)
Article History
Accepted: 29 March 2022
First Online: 21 May 2022