I know you think you understand what you thought I said but Im not sure you realize that what you heard is not what I meant. - Alan Greenspan

Clearly, sustained low inflation implies less uncertainty about the future, and lower risk premiums imply higher prices of stocks and other earning assets.… But how do we know when irrational exuberance has unduly escalated asset values, which then become subject to unexpected and prolonged contractions as they have in Japan over the past decade?

Modern dynamic economies do not stay still long enough to allow for an accurate reading of their underlying structures.

It's hard to overemphasize how important Ford's deregulation was. True, most of the benefits took years to unfold-rail freight rates, for example hardly budged at first. Yet deregulation set the stage for an enormous wave of creative destruction in the 1980s:...