结合文本与经济数据预测美联储决策
文章 arXiv papers · 作者: Fiona Xiao Jingyi et al.
总结
本研究检验美联储沟通是否能为联邦基金利率决策预测提供有用信息。研究比较了仅使用经济指标、仅使用文本特征以及结合两者的模型,涵盖传统机器学习、基于Transformer的语言特征和深度学习方法。
报告中最强的结果来自将从FOMC文本提取的TF-IDF特征与经济指标结合,并输入XGBoost分类器;该模型的测试AUC达到0.83。FinBERT情感特征略微改善了排序表现,但分类效果较差,尤其是在类别不平衡时。SHAP分析表明,稀疏文本特征与政策相关信号的吻合度更高。这些发现支持使用透明的混合模型,但摘录对样本构建、验证设计或模型在不同政策时期的表现说明有限,因此不应将结果视为可靠实盘预测的证据。
核心观点
- 结合FOMC文本特征与经济指标,表现优于单独使用任一数据来源的模型。
- 报告中表现最好的模型使用了TF-IDF文本特征和XGBoost,测试AUC为0.83。
- FinBERT情感特征略微改善排序表现,但在类别不平衡时分类效果较差。
- SHAP分析表明,稀疏文本特征与政策相关信号的吻合度更高。
- 摘录不能证明报告的表现会在不同时期或实盘交易中持续。
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全文
# Can We Reliably Predict the Fed's Next Move? A Multi-Modal Approach to U.S. Monetary Policy Forecasting # Can We Reliably Predict the Fed's Next Move? A Multi-Modal Approach to U.S. Monetary Policy Forecasting Forecasting central bank policy decisions remains a persistent challenge for investors, financial institutions, and policymakers due to the wide-reaching impact of monetary actions. In particular, anticipating shifts in the U.S. federal funds rate is vital for risk management and trading strategies. Traditional methods relying only on structured macroeconomic indicators often fall short in capturing the forward-looking cues embedded in central bank communications. This study examines whether predictive accuracy can be enhanced by integrating structured data with unstructured textual signals from Federal Reserve communications. We adopt a multi-modal framework, comparing traditional machine learning models, transformer-based language models, and deep learning architectures in both unimodal and hybrid settings. Our results show that hybrid models consistently outperform unimodal baselines. The best performance is achieved by combining TF-IDF features of FOMC texts with economic indicators in an XGBoost classifier, reaching a test AUC of 0.83. FinBERT-based sentiment features marginally improve ranking but perform worse in classification, especially under class imbalance. SHAP analysis reveals that sparse, interpretable features align more closely with policy-relevant signals. These findings underscore the importance of integrating textual and structured signals transparently. For monetary policy forecasting, simpler hybrid models can offer both accuracy and interpretability, delivering actionable insights for researchers and decision-makers.
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