About the Authors

Yuan Chai

Roles Conceptualization, Data curation, Methodology, Writing – original draft

Affiliation School of Labor Economics, The Capital University of Economics and Business, Beijing, China

Qi Zhang

Roles Conceptualization, Supervision

Affiliation School of Labor Economics, The Capital University of Economics and Business, Beijing, China

Yifei Yuan

Roles Visualization, Writing – review & editing

yuanyifei993@163.com

Affiliation School of Labor Economics, The Capital University of Economics and Business, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.