About the Authors

Jiang-Cheng Li

Contributed equally to this work with: Jiang-Cheng Li, Jin Guo, Rui Ma, Guangyan Zhong

Roles Conceptualization, Formal analysis, Funding acquisition, Investigation, Project administration, Resources, Writing – original draft, Writing – review & editing

Affiliation School of Economics, Yunnan University of Finance and Economics, Kunming, People’s Republic of China

Jin Guo

Contributed equally to this work with: Jiang-Cheng Li, Jin Guo, Rui Ma, Guangyan Zhong

Roles Investigation, Methodology, Software, Visualization, Writing – original draft, Writing – review & editing

guojin53@163.com

Affiliation School of Finance, Yunnan University of Finance and Economics, Kunming, People’s Republic of China

Rui Ma

Contributed equally to this work with: Jiang-Cheng Li, Jin Guo, Rui Ma, Guangyan Zhong

Roles Investigation, Writing – original draft, Writing – review & editing

Affiliation School of Economics, Yunnan University of Finance and Economics, Kunming, People’s Republic of China

Guangyan Zhong

Contributed equally to this work with: Jiang-Cheng Li, Jin Guo, Rui Ma, Guangyan Zhong

Roles Funding acquisition, Project administration, Resources, Writing – original draft, Writing – review & editing

Affiliation School of Economics, Yunnan University of Finance and Economics, Kunming, People’s Republic of China

Competing Interests

The authors have declared that no competing interests exist.