About the Authors

Kewei Wang

Contributed equally to this work with: Kewei Wang, Kekun Fan

Roles Methodology

Affiliation School of Economics and Management, Inner Mongolia University of Technology, Hohhot, China

Kekun Fan

Contributed equally to this work with: Kewei Wang, Kekun Fan

Roles Writing – original draft

Affiliation School of Economics and Management, Inner Mongolia University of Technology, Hohhot, China

Yuhong Chen

Roles Writing – review & editing

13848354636@163.com

‡ YC also contributed equally to this work.

Affiliation School of Economics and Management, Inner Mongolia University of Technology, Hohhot, China

Competing Interests

The authors have declared that no competing interests exist.