by jpfeifer » Mon Jul 07, 2014 8:09 am
I cannot give much advice here as I don't know the model. If you think the behavior is suspicious, there must be a mistake somewhere, either in the equations or the parameterization. Looking at the IRFs, I don't find the persistence too problematic, particularly given the low delta. I rather find the erratic oscillating behavior of some IRFs in the beginning puzzling.