- 1Sinotruk Finance Co., Ltd., Jinan, China
- 2School of International Trade and Economics, Shandong University of Finance and Economics, Jinan, China
- 3School of Management, Ocean University of China, Qingdao, China
- 4School of Mathematics, Zhengzhou University, Zhengzhou, China
Received: 30 April 2022; Accepted: 25 July 2022;
Published: 25 August 2022; Retracted: 07 August 2025.
Edited by:
Martin Thomas Falk, University of South-Eastern Norway (USN), Norway