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Comment on “Realized Variance and Market Microstructure Noise†by Peter R. Hansen and Asger Lunde

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  • Peter C. B. Phillips

    (SMU)

  • Jun Yu

Abstract

With the availability of ultra high frequency financial data, the task of finding an appropriate econometric model to describe the movement of financial variables at the tick-by-tick level has become an important goal in financial econometric research. The task has both theoretical and empirical dimensions. From an empirical perspective, the near continuous recording of financial asset prices has opened up the intriguing possibility of fitting the quadratic variation process empirically, leading to what is possibly the most direct nonparametric measure of asset price volatility. The resulting quantity has become known in the financial econometrics literature as realized variance (RV) and measures the accumulated or integrated variance (IV) of the efficient price process from some given initialization. This quantity is now the focal point of much of the latest research on market volatility.

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Bibliographic Info

Paper provided by East Asian Bureau of Economic Research in its series Finance Working Papers with number 22470.

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Date of creation: Jan 2005
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Handle: RePEc:eab:financ:22470

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Keywords: financial econometric research; movement of financial variables; integrated variance; realized variance;

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