Ontology highlight
ABSTRACT:
SUBMITTER: Ait-Sahalia Y
PROVIDER: S-EPMC5875494 | biostudies-literature | 2017
REPOSITORIES: biostudies-literature
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]