About the Authors

Jian Zhang

Affiliation Department of business administration, Dongling School of Economics and Management, University of Science and Technology Beijing, Beijing, China

Haocheng Wang

hebeigeng@126.com

Affiliation Department of business administration, Dongling School of Economics and Management, University of Science and Technology Beijing, Beijing, China

Limin Wang

Affiliation Department of financial engineering, Dongling School of Economics and Management, University of Science and Technology Beijing, Beijing, China

Shuyi Liu

Affiliation Department of business administration, Dongling School of Economics and Management, University of Science and Technology Beijing, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JZ LW. Performed the experiments: HW SL. Analyzed the data: HW SL. Contributed reagents/materials/analysis tools: HW SL. Wrote the paper: JZ HW.