We use high-frequency data to examine the effects of introducing an additional night trading session of four hours at the Shanghai Futures Exchange for Copper and Aluminum futures in December 2013. This additional trading session is shown to cause a structural break in the intraday behavior of...

This paper introduces a multivariate kernel based forecasting tool for the prediction of variance-covariance matrices of stock returns. The method introduced allows for the incorporation of macroeconomic variables into the forecasting process of the matrix without resorting to a decomposition of...