Why is tail risk fatter in China’s A-share market than in the US market? – based on the XGBoost machine learning method

Qiang Di et al.

Asia-Pacific Journal of Accounting and Economics2026https://doi.org/10.1080/16081625.2026.2632592article
AJG 2ABDC B
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https://doi.org/https://doi.org/10.1080/16081625.2026.2632592

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@article{qiang2026,
  title        = {{Why is tail risk fatter in China’s A-share market than in the US market? – based on the XGBoost machine learning method}},
  author       = {Qiang Di et al.},
  journal      = {Asia-Pacific Journal of Accounting and Economics},
  year         = {2026},
  doi          = {https://doi.org/https://doi.org/10.1080/16081625.2026.2632592},
}

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Why is tail risk fatter in China’s A-share market than in the US market? – based on the XGBoost machine learning method

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Evidence weight

0.50

Balanced mode · F 0.40 / M 0.15 / V 0.05 / R 0.40

F · citation impact0.50 × 0.4 = 0.20
M · momentum0.50 × 0.15 = 0.07
V · venue signal0.50 × 0.05 = 0.03
R · text relevance †0.50 × 0.4 = 0.20

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