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English(EN) DisclosureBeta: A Measurement-Channel Theory for Regime-Conditioned Betas from LLM-Read Risk Disclosures

新理论利用LLM在价格数据稀缺时估算公司风险

研究人员开发了一个名为DisclosureBeta的新理论框架,用于在历史价格数据有限的情况下估算公司的beta值(衡量其对市场风险的敏感度)。该方法将大型语言模型(LLM)建模为公司风险特征的噪声测量通道,并将此噪声纳入资产定价误差预算。该理论提供了一种识别和一致估算模型条件下的载荷的方法,为估算精度提供了下限,该下限考虑了不可避免的披露噪声和错误分类项。提出了一种文本和滚动窗口估计器的自适应组合,该组合根据价格历史的质量和长度动态调整其权重。 AI

影响 在量化金融领域引入了LLM在风险评估方面的新颖应用,有可能提高金融建模的准确性。

排序理由 详细介绍金融风险测量新理论框架的学术论文。[lever_c_demoted from research: ic=1 ai=0.4]

在 arXiv cs.CL 阅读 →

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新理论利用LLM在价格数据稀缺时估算公司风险

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详细介绍金融风险测量新理论框架的学术论文。[lever_c_demoted from research: ic=1 ai=0.4]
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报道来源 [1]

  1. arXiv cs.CL TIER_1 English(EN) · Ping Kuen Wong ·

    DisclosureBeta:一种用于从LLM阅读的风险披露中获取模型条件Beta值的测量通道理论

    arXiv:2609.02900v1 Announce Type: cross Abstract: The problem is the beta a desk needs when a firm's price history is too short to trust: an S-1 filer, a recent listing, or a name just past a regime break. The state of the art collapses to a comparable-firm peer beta with no erro…