subject to stochastic volatility. It enables the disentanglement of dynamic structures in both the mean and the variance of … increased during the 2008 financial crisis while it has recently returned to its pre-crisis level. The extracted volatility …

Intraday high-frequency data of stock returns exhibit not only typical characteristics (e.g., volatility clustering and … the leverage effect) but also a cyclical pattern of return volatility that is known as intraday seasonality. In this paper …, we extend the stochastic volatility (SV) model for application with such intraday high-frequency data and develop an …