About the Authors

Bingtao Su

Roles Formal analysis, Methodology, Writing – original draft

bingtaosu@email.sdu.edu.cn (BS); caoxq67@163.com (XC)

Affiliations School of Philosophy and Social Development, Shandong University, Jinan, China, Shenzhen Research Institute, Shandong University, Nanshan, Shenzhen, China

Xianqiang Cao

Roles Supervision, Writing – review & editing

bingtaosu@email.sdu.edu.cn (BS); caoxq67@163.com (XC)

Affiliation School of Political Science and Public Administration, Shandong University, Jimo, Qingdao, China

Competing Interests

The authors have declared that no competing interests exist.