General Discussion
In reply to the discussion: Do our leaders know that the deficit is NOT unsustainable? [View all]cthulu2016
(10,960 posts)it would play out the same as if there were a real economic reason for 90% being a magic number. I grant that.
So it is possible for 90% to be a magic number in practical effect.
And I do not advise the USA blowing past 90%, either, except perhaps in a way calculated to best increase future tax revenues by GDP expansion.
(I am not an MMTer who thinks debt cannot matter. At some point it has to matter.)
But I do not think lenders are incapable of distinguishing between the USA at 90% and Greece at 90%. (They certainly do not treat Greece and Japan the same way -- Japan has a much larger relative debt than we do.)
I do not think we should plan to have a huge debt all the time. I think we should, however, try the experiment of kick-starting things with short-term but conventionally very "excessive" debt increase. (Rather than limping along like Japan, which just leads to Japan sized debt without frantic effect.)