Variance decomposition gives dummy results in the presence of non-stationary vars
In the attached MOD file, the variance decomposition is clearly bogus: some lines don't sum to 100% (some percentages are even negative).
The problem does not occur with Dynare 4.0.4. This is probably related to the fact that this model contains a non-stationary variable. The file th_autocovariances.m has changed between versions 4.0.4 and 4.1.0 with respect to the treatment of stationary variables.
Also note that the problem does not come from the fact that some shocks are switched off (with a zero variance) in the attached MOD file. Activating all the shocks still gives dummy results.