As Goldman Sachs' (GS) Alec Phillips points out, "For every day of shutdown, federal compensation in Q4 is reduced by $400 million." Less income for government employees equals less spending. So at some point, the shutdown is going to start weighing (heavily) on the economy.
But where is that point?
I'd say it's around 21 business days. At that point, the shutdown would slash GDP growth for the fourth quarter by about 40%. Wall Street Daily - wallstreetdaily.com
$400 million per day? And that does not include the entire Federal government, just the "non-essential" personnel.
Yikes!