Article History
Received: 29 December 2021
Accepted: 22 February 2022
First Online: 24 March 2022
Declarations
:
: This study involves the macro data of human economy and society. All the data are from the Statistical Yearbook. The data collection process is in line with the ethical and moral standards. The research method of this study is spatial econometric method, and there is no need for ethical approval and animal experiment content. The author guarantees that the process, content, and conclusion of this study do not violate the theory and moral principles.
: Not applicable.
: The authors declare no competing interests.