High-Frequency Covariance Estimates With Noisy and Asynchronous Financial Data
含噪声且异步金融数据的高频协方差估计AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接研究微观结构噪声与异步采样下的金融高频二次协变差估计。
含噪声且异步金融数据的高频协方差估计AI 解读 ↓
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This article proposes a consistent and efficient estimator of the high-frequency covariance (quadratic covariation) of two arbitrary assets, observed asynchronously with market microstructure noise. This estimator is built on the marriage of the quasi–maximum likelihood estimator of the quadratic variation and the proposed generalized synchronization scheme and thus is not influenced by the Epps effect. Moreover, the estimation procedure is free of tuning parameters or bandwidths and is readily implementable. Monte Carlo simulations show the advantage of this estimator by comparing it with a variety of estimators with specific synchronization methods. The empirical studies of six foreign exchange future contracts illustrate the time-varying correlations of the currencies during the 2008 global financial crisis, demonstrating the similarities and differences in their roles as key currencies in the global market.