Article ID: | iaor20081535 |
Country: | United Kingdom |
Volume: | 25 |
Issue: | 8 |
Start Page Number: | 579 |
End Page Number: | 600 |
Publication Date: | Dec 2006 |
Journal: | International Journal of Forecasting |
Authors: | Audrino Francesco, Barone-Adesi Giovanni |
We propose a simple class of multivariate GARCH models, allowing for time-varying conditional correlations. Estimates for time-varying conditional correlations are constructed by means of a convex combination of averaged correlations (across all series) and dynamic realized (historical) correlations. Our model is very parsimonious. Estimation is computationally feasible in very large dimensions without resorting to any variance reduction technique. We back-test the models on a six-dimensional exchange-rate time series using different goodness-of-fit criteria and statistical tests. We collect empirical evidence of their strong predictive power, also in comparison to alternative benchmark procedures.