About the Authors
- Ting Li
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Roles Conceptualization, Data curation, Funding acquisition, Writing – original draft
Affiliation Department of Economics, Tongling University, Tongling, Anhui, China
- Jing-Ya Li
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Roles Data curation, Investigation, Methodology, Writing – review & editing
* E-mail: 17865326845@163.com
Affiliation Department of Economics, Ocean University of China, Qingdao, Shandong, China
Competing Interests
The authors have declared that no competing interests exist.