Goldman Sachs analyst Alec Phillips said in a client note that a short government shutdown could be a good thing if it forces Republicans to raise the debt ceiling:
It would be a mistake to interpret a shutdown as implying a greater risk of a debt limit crisis, in our view. It would not be surprising to see a more negative market reaction to a shutdown than would be warranted by the modest macroeconomic effect it would have. We suspect that many market participants would interpret a shutdown as implying a greater risk of problems in raising the debt limit. This is not unreasonable, but we would see it differently. If a shutdown is avoided, it is likely to be because congressional Republicans have opted to wait and push for policy concessions on the debt limit instead. By contrast, if a shutdown occurs, we would be surprised if congressional Republicans would want to risk another difficult situation only a couple of weeks later. The upshot is that while a shutdown would be unnecessarily disruptive, it might actually ease passage of a debt limit increase.