Estimation of common factors for microstructure noise and efficient price in a high-frequency dual factor model
高频双因子模型中微观结构噪声与有效价格共同因子的估计AI 解读 ↓
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高频双因子模型中微观结构噪声与有效价格共同因子的估计AI 解读 ↓
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We develop the Double Principal Component Analysis (DPCA) based on a dual factor structure for high-frequency intraday returns contaminated with microstructure noise. The dual factor structure allows a factor structure for microstructure noise in addition to the factor structure for efficient log-prices. We construct estimators of factors for both efficient log-prices and microstructure noise as well as their common components, and provide uniform consistency of these estimators when the number of assets and the sampling frequency go to infinity. In a Monte Carlo exercise, we compare our DPCA method to a PCA-VECM method. Finally, an empirical analysis of intraday returns of S&P 500 Index constituents provides evidence of co-movement of the microstructure noise that distinguishes from latent systematic risk factors.