期刊
ECONOMETRICA
卷 76, 期 6, 页码 1481-1536出版社
WILEY
DOI: 10.3982/ECTA6495
关键词
Bipower variation; long-run variance estimator; market frictions; quadratic variation; realized variance
类别
资金
- Danish National Research Foundation
This paper shows how to use realized kernels to carry out efficient feasible inference on the ex post variation of underlying equity prices in the presence of simple models of market frictions. The weights can be chosen to achieve the best possible rate of convergence and to have an asymptotic variance which equals that of the maximum likelihood estimator in the parametric version of this problem. Realized kernels can also be selected to (i) be analyzed using endogenously spaced data such as that in data bases on transactions, (ii) allow for market frictions which are endogenous, and (iii) allow for temporally dependent noise. The finite sample performance of our estimators is studied using simulation, while empirical work illustrates their use in practice.
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