Jérémie Cohen-Setton links to a new Fed report [pdf] about how some published results change if you use NGDI instead of NGDP; they find:
Estimating models using GDI, both with the GDI data originally available to the authors and with revised GDI, instead of GDP generates larger differences in results than those obtained with revised GDP. For 3 of 23 papers (13%), the results we obtain with GDI are qualitatively different than the original published results.
So I thought it would be good to check some IT model results using this method. I checked this post, and I basically get the same result:
And I checked this post:
It checks out so far. I'll continue to check these two independent measures of nominal output in the future.