In this paper, we develop a component Markov switching conditional volatility model based on the intraday range and evaluate its performance in forecasting the weekly volatility of the S&P 500 index. We compare the performance of the range-based Markov switching model with that of a number of...

In this paper, we evaluate the economic benefits that arise from allowing for long memory in forecasting the covariance matrix of returns over both short and long horizons, using the asset allocation framework of Engle and Colacito (2006). In particular, we compare the statistical and economic...