https://orcid.org/0000-0002-4773-7670
About the Authors
- Guangyao Deng
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Roles Funding acquisition, Writing – original draft
Affiliation School of Statistics, Lanzhou University of Finance and Economics, Lanzhou, PR China
- Fengying Lu
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Roles Data curation
Affiliation School of Statistics, Lanzhou University of Finance and Economics, Lanzhou, PR China
- Xiaofang Yue
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Roles Supervision
* E-mail: harborangel@163.com
Affiliation China Center for Special Economic Zone Research, Shenzhen University, Shenzhen, PR China
Competing Interests
The authors have declared that no competing interests exist.