Reply #2: It's called a flip-flop.

[theorist]

From Lee Price's commentary on the subject:

After the attacks, policy makers from the President on down exhorted the American people to continue to live their lives and go about their daily business – with added care and vigilance, to be sure, but without yielding to fear. They said that to do anything else would be to hand victory to the terrorists, who wanted the blows they struck to resonate through the economy. Two years later, it seems that the people took that advice to heart. Although the current economic picture is not as strong as any of us would like to see it, the people did not succumb to fear and the impact of the acts of terror on the economy have faded.

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But the point of this short piece is to challenge the idea that 9/11 had a widespread effect, short term effect on the economy.