About the Authors

Xiaoxia Xu

Roles Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Resources, Software, Visualization, Writing – original draft, Writing – review & editing

Affiliation School of Economics, Jinan University, Guangzhou, China

Wenbin Zuo

Roles Conceptualization, Supervision, Validation

zwbinnn@163.com

Affiliation School of Economics, Jinan University, Guangzhou, China

Competing Interests

The authors have declared that no competing interests exist.