He's treading on very thin ice. When the Fed chairman says that the stock market is very expensive, the average investors is not going to be pleased.

[Analysts and economists remained uncertain whether Greenspan's latest comments would do more than puzzle investors.] He's treading on very thin ice, ... When the Fed chairman says that the stock market is very expensive, the average investors is not going to be pleased.

The Fed Chairman would be very happy if the bond market did some of the tightening for him. And I think if we saw the long bond yield back above, say, 6.75 percent, edging towards 7 percent, that would limit some of the restraint the Fed would have to impose on the economy.

The Fed Chairman would be very happy if the bond market did some of the tightening for him,

When a doctor administers medicine, he or she makes a judgment about the appropriate dosage in advance. The Fed has to make that judgment, but there's a chance they've already given out the right dosage and just need an appropriate amount of time for it to take effect.

Thin Ice.