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OK, thanks. So the Bayesian IRF methods impose a diagonal cov matrix?

Eviews 13 and Litterman/ Minnesota prior BVARs. IRFs using Bayesian sampling, but I get the same results using the posterior/ empirical residual covariances.

Hi, I am estimating some simple Litterman-prior BVARs. When I generate the impulse responses, the Cholesky ordering seems not to matter to the output (the other variables always responds with a one period lag, regardless of the ordering). Is this normal behaviour?