Tracking Economic Activity With Alternative High‐Frequency Data
利用替代性高频数据追踪经济活动AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确提出混频动态因子模型,并以高频 GDP 测量和即时预测为目标,直接对应宏观因子与预测方向。
利用替代性高频数据追踪经济活动AI 解读 ↓
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ABSTRACT Monthly macroeconomic series captured the sharp fluctuations during the COVID‐19 pandemic only with a lag. The use of alternative high‐frequency data is promising for crisis periods, but it is difficult to extract relevant business cycle information from them. We present a Bayesian mixed‐frequency dynamic factor model with stochastic volatility for measuring GDP growth at high‐frequency intervals. Its novelty is an additional state‐space block, in which the sparse observations in the mixed‐frequency data are augmented to a balanced panel with observed and estimated latent information. The dynamic factors are then estimated conditional on the augmented data. Our model exploits the information in rich datasets of weekly, monthly, and quarterly series, including alternative high‐frequency data. GDP is nowcasted timely and accurately during volatile periods.