The serial dependency of multivariate nancial data will often be ltered by con-sidering the residuals of univariate GARCH models adapted to every single series.This is the correct ltering strategy if the multivariate process follows a so-calledcopula based multivariate dynamic model (CMD). These...

The wavelet transform is used to identify a biannual and an annual seasonalityin the Phelix Day Peak and to separate the long-term trend from its short-termmotion. The short-term/long-term model for commodity prices of Schwartz &Smith (2000) is applied but generalised to account for weekly...