Bernanke's blog relies heavily on the notion of 'equilibrium'. Below is a link to a recent article from Steve Keen in which he argues that theory is a nonsense.
Keen's article appeared as a response to Yellen's recent speech in which, according to Keen, she uses the word 'equilibrium' 17 times. So it is interesting that Bernanke comes out to reinforce that terminology in his piece .... perhaps his blog is not to be taken just at face value?
