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Authors
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (12271046, 12201306)
National Statistical Science Research Project of China (2024LY088)
Open Project of Joint Lab for Statistics and Finance of NAU (2025JLSF306, 2025JLSF320)
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Article History
Received: 18 December 2025
Accepted: 15 July 2026
First Online: 24 July 2026
Declarations
Conflict of interest: The authors declare that they have no conflict of interest.
