Statistical Properties of Microstructure Noise
微观结构噪声的统计性质AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要以高频价格数据中的微观结构噪声为对象,重点估计其矩、自协方差与自相关,直接属于高频计量研究。
微观结构噪声的统计性质AI 解读 ↓
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We study the estimation of (joint) moments of microstructure noise based on high frequency data. The estimation is conducted under a nonparametric setting, which allows the underlying price process to have jumps, the observation times to be irregularly spaced, and the noise to be dependent on the price process and to have diurnal features. Estimators of arbitrary orders of (joint) moments are provided, for which we establish consistency as well as central limit theorems. In particular, we provide estimators of autocovariances and autocorrelations of the noise. Simulation studies demonstrate excellent performance of our estimators in the presence of jumps, irregular observation times, and even rounding. Empirical studies reveal (moderate) positive autocorrelations of microstructure noise for the stocks tested.