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Hi, does any one have any idea if estimation function of Generalized Forecast Error Variance Decomposition is available in Eviews, or any other software packages? Thanks.

Hi all, I'm estimating a VAR(4) model with level volatilities (stationary checked), and the impulse response graph shows me that the responses of all variables in the system don't seem to go away, they all remain at a constant level (positive) after the first/second period (see attachment). I wonder...