Article History
Received: 10 January 2022
Accepted: 26 April 2022
First Online: 5 May 2022
Declarations
:
: Ethics approval and consent to participate This study involve the macro data of the human economy and society. All the data are from the official statistical yearbook. The data collection process is in line with ethical and moral standards. The research method of this study is DEA and econometrics, and there is no need for ethical approval and animal experiment content. The author guarantees that this study’s process, content, and conclusion do not violate the theory and moral principles.
: Not applicable.
: The authors declare no competing interests.