1.   Already, the previous irrational exuberance has already led rather swiftly to irrational pessimism.

2.   Although some stock market pundits are still worried about irrational exuberance, Bill Hatcher, a retiree who trades stocks and options online, worries more about misplaced melancholia.

3.   And yet Hal probably experienced what George Bush felt and reflected in his post-jump remarks, which revealed what Alan Greenspan might have called an irrational exuberance.

4.   Alan Greenspan, the Fed chief often quoted as warning against irrational exuberance in the financial markets, sounded quite a different note last week.

5.   But first, Wall Street must finish clearing out the excesses left from the era of irrational exuberance.

6.   But it may also be a sign of what Federal Reserve Chairman Alan Greenspan called irrational exuberance, applied on a global scale.

7.   But just when I thought that our age of irrational financial exuberance had evaporated any sense of civic responsibility, this eclectic group surprised me.

8.   But must irrational exuberance be followed by recession?

9.   But only if American consumers lurch from irrational exuberance to an equally exaggerated pessimism will the country face a recession.

10.   But what if irrational exuberance is in fact the secret to vigorous economic growth?