About the Authors

Juan He

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Resources, Software, Visualization, Writing – original draft, Writing – review & editing

hejuanfp@163.com

Affiliation School of International Business, Southwestern University of Finance and Economics, Chengdu, Sichuan, China

Shuang Yang

Roles Project administration, Supervision, Validation, Visualization, Writing – review & editing

Affiliation Financial Department, Qingdao Haijian Investment CO., Ltd., Qingdao, Shandong, China

Competing Interests

The authors have declared that no competing interests exist.