 - `data-for-ecb-base.mat` contains data (`dseries` format) for the
   endogenous and exogenous variables of the full model. This file is
   generated from the new infrastructure:
   ```matlab
   >> db = data.simulation.build('U2', 'models', {});
   >> db.save('data-for-ecb-base', 'mat');
   ```
 - `vars` contains the list of endogenous and exogenous variables in
   the complete model, also extracted from the new infrastructure.
 - `baseline.mat` contains the baseline to be used for all the perfect
   foresight simulations. The data are generated by
   `generate_baseline_and_backward_irfs` (the matlab script available
   under the `matlab` subfolder generates simulations along the
   BGP). The baseline (`dseries` format) is saved here under git LFS
   to avoid the need to run the BGP simulation routine.
