Xiao, Huimin
Mao, Jun
Funding for this research was provided by:
National Natural Science Foundation of China (71702069)
Higher Education Research Foundation of Nanjing University of Finance and Economics (GJ2018)
Education Department of Hainan Province (Hnjg2018ZD-10)
Article History
Received: 12 April 2020
Revised: 19 October 2020
Accepted: 20 October 2020
First Online: 23 November 2020