Act Accordingly

 | Apr 19, 2017 02:05AM ET

The textbook says that whenever the central bank raises its policy rate that means tightening. Actual experience over more than just this last lost decade demonstrates that at the very least it is much more complicated than that. There is far more evidence of monetary policy being nothing more than a response, as that reverse condition can absolutely be established by global monetary behavior time and again. Alan Greenspan “tightened” from June 2004 forward to no effect, and then Ben Bernanke “accommodated” in perfectly equivalent fashion from September 2007 forward, likewise to no effect.