About the Authors

Yan Zhang

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

yz333@cam.ac.uk

Affiliations Centre of Development Studies, University of Cambridge, United Kingdom, School of Economics, Yunnan University, Kunming, China

Competing Interests

The authors have declared that no competing interests exist.