Using the “Taylor-rule approach”, basically yet another one of those equations for the economy that the “quants” came up with, and they get a number: negative five percent.

This is why central bankers have no clue what to do.

Of course, if Greenspan had not created the bubble, both in real estate, and in other investments, by pushing interest rates so low and ignoring market abuses, there would still be some marging, but there is no margin, so we are screwed.