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i estimated structural vars in eviews, but am not 100% sure as to what is the one standard deviation structural shock. is the structural shock the diagonals of the B matrix. or are they variances and thus i need to take the square root? or is the one SD structural shock something else altogether?

I have calculated a Vector Error Correction Model, but I am having trouble interpreting the results. When all variables are in first differences and they are in natural log form, I though the interpretation was that they were elasticities. But instead, I have impulse response values which are clarly...