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Authors
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (71932008)
the Engineering Research Center of National Financial Security of Ministry of Education, and the Emerging Interdisciplinary Project of CUFE (011659919001)
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Article History
Received: 10 October 2021
Revised: 21 January 2022
Accepted: 12 February 2022
First Online: 14 March 2022
Conflict of interest
: The authors declared that they have no conflicts of interest to this work.
: All authors consciously assure that for the manuscript fulflls the following statements: 1) This material is the authors’ own original work, which has not been previously published elsewhere. 2) The paper is not currently being considered for publication elsewhere. 3) The paper refects the authors’ own research and analysis in a truthful and complete manner. 4) The paper properly credits the meaningful contributions of co-authors and co-researchers. 5) The results are appropriately placed in the context of prior and existing research.
: All the data and codes, as well as, the supplementary material used in this study can be made available from the corresponding author, upon reasonable request.
: All the codes used in this study, as well as, the supplementary material can be made available from the corresponding author, upon reasonable request.
: The theoretical analysis and empirical analysis were completed by Aihua Li and Weijia Xu. The data collection, discussion and review were done by Lu Wei.
Free to read: This content has been made available to all.
