Is there something like insignificant response of a variable to a shock?

[kofiemma]

The response of some variables is close to zero, which is expected in my model. I want to say these are insignificant responses. Can I? I think I can but I have not seen the term - insignificant irf - being used before, or a similar phrase, at least in my readings of DSGE papers. Pardon my shallow knowledge. Maybe someone can point me to some paper…Or perharps such IRFs are ignored in DSGE papers.

[jpfeifer]

Significance is usually used as a statistical concept, but there is no sampling uncertainty in the standard IRFs at first order. So you cannot use that term.
However, the displayed IRFs are below an reasonable numerical accuracy. Therefore, they are numerically zero for all practical purposes. That’s the reason why they are never shown.