Chiang, Thomas C.; Qiao, Zhuo; Wong, Wing-Keung - In: Journal of Forecasting 29 (2010) 5, pp. 502-515
In the empirical literature, it has been shown that there exists both linear and non-linear bi-directional causality between trading volumes and return volatility (measured by the square of daily return). We re-examine this claim by using realized volatility as an estimator of the unobserved...