what are the insignificant coefficients used for which variable is characterized by a vector autoregression why is var coefficient insignificant which of the following coefficients is not significant? what is the significance of the var why is vector autoregression used for irf data why are vector autoregressive coefficients insignificant what is the smallest vector autoregression coefficient what is tar coefficients is var statistically significant are var coefficients significant which of the following is an irf? why would the coefficients be insignificant with var do var coefficients are significant which of the following does not have a significant coefficient which coefficient is insignificant what is the coefficient of var what is the significance of var coefficient what is an insignificant var coefficient do var coefficients are significant