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Estimation of the Continuous and Discontinuous Leverage Effects.


ABSTRACT: This paper examines the leverage effect, or the generally negative covariation between asset returns and their changes in volatility, under a general setup that allows the log-price and volatility processes to be Itô semimartingales. We decompose the leverage effect into continuous and discontinuous parts and develop statistical methods to estimate them. We establish the asymptotic properties of these estimators. We also extend our methods and results (for the continuous leverage) to the situation where there is market microstructure noise in the observed returns. We show in Monte Carlo simulations that our estimators have good finite sample performance. When applying our methods to real data, our empirical results provide convincing evidence of the presence of the two leverage effects, especially the discontinuous one.

SUBMITTER: Ait-Sahalia Y 

PROVIDER: S-EPMC5875494 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Estimation of the Continuous and Discontinuous Leverage Effects.

Aït-Sahalia Yacine Y   Fan Jianqing J   Laeven Roger J A RJA   Wang Christina Dan CD   Yang Xiye X  

Journal of the American Statistical Association 20170807 520


This paper examines the leverage effect, or the generally negative covariation between asset returns and their changes in volatility, under a general setup that allows the log-price and volatility processes to be Itô semimartingales. We decompose the leverage effect into continuous and discontinuous parts and develop statistical methods to estimate them. We establish the asymptotic properties of these estimators. We also extend our methods and results (for the continuous leverage) to the situati  ...[more]

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