translate English to French: Empirically, the literature on forecasting tends to support the superiority of the VECMs for longer-horizon forecasting, although this advantage does not seem as clear for shorter horizons (see Hoffman and Rasche, 1996, as well as Christoffersen and Diebold, 1997).
Empiriquement, la littérature tend généralement à privilégier les MVCE pour leur supériorité dans les prévisions à long terme (voir Hoffman et Rasche, 1996, aussi Christoffersen et Diehold, 1997).