"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?"

“Of course, shedding the debt burden would be a happy development for our country, but it would nevertheless pose a big dilemma for the Fed. Our primary lever of monetary policy was buying and selling treasury securities-Uncle Sam's IOU's. But as the debt was paid down, those securities would grow scarce, leaving the Fed in need of a new set of assets to effect monetary policy.”

“Yes, I’ve found a flaw. I don’t know how significant or permanent it is. But I’ve been very distressed by that fact.”

“Once stock prices reach the point at which it is hard to value them by logical methodology, stocks will be bought as they were in the late 1920s not for investment but to be unloaded at a still higher price. The ensuing break could be disastrous because panic psychology cannot be summarily altered or reversed by easing money policies.”

“We had a bubble in housing.”

“Without calling the overall national issue a bubble, it's pretty clear that it's an unsustainable underlying pattern.”

“We generally did not talk about the stock market very much at the Fed.”