[Gretl-users] difference between SVAR and VAR IRFs

Dear All, I have a question, which probably you will find stupid.. I have to study the structural shocks to output for changes in government spending and taxes in the Normandy Invasion of WWII (period identified by dummy variable) and computing the consequent multipliers. For multipliers it is not a problem since they are linked with the VAR coefficients but for IRF...which ones do I have to check? Better saying,..the option for IRFs in the standard Vector Autoregression is anyway based on the Cholesky decomposition but IRF obtained in the SVAR are different: so which one do I have to choose and why? Thanks for attention and help!! Mirko Invita i tuoi amici e Tiscali ti premia! Il consiglio di un amico vale più di uno spot in TV. Per ogni nuovo abbonato 30 € di premio per te e per lui! Un amico al mese e parli e navighi sempre gratis: http://freelosophy.tiscali.it/