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- W3105648670 abstract "We consider microstructure as an arbitrary contamination of the underlying latent securities price, through a Markov kernel Q. Special cases include additive error, rounding and combinations thereof. Our main result is that, subject to smoothness conditions, the two scales realized volatility is robust to the form of contamination Q. To push the limits of our result, we show what happens for some models that involve rounding (which is not, of course, smooth) and see in this situation how the robustness deteriorates with decreasing smoothness. Our conclusion is that under reasonable smoothness, one does not need to consider too closely how the microstructure is formed, while if severe non-smoothness is suspected, one needs to pay attention to the precise structure and also the use to which the estimator of volatility will be put." @default.
- W3105648670 created "2020-11-23" @default.
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- W3105648670 date "2007-08-01" @default.
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- W3105648670 title "Are volatility estimators robust with respect to modeling assumptions?" @default.
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- W3105648670 doi "https://doi.org/10.3150/07-bej6067" @default.
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