Four weeks after the horrific attacks of Sept. 11, aftershocks are rippling through nearly every sector of the U.S. economy on a scale the terrorists probably never anticipated. The estimated hit to the U.S. economy so far: at least $100 billion this year,on top of tens of billions in property damage and the staggering loss of human life.
That price tag reflects a shift in the outlook for the rest of this year.

Before the attacks, economists were expecting gross domestic product to grow at an annual rate of slightly more than 1% in the 2001 second half. Now they expect the U.S.'s $10 trillion economy to shrink by nearly 1% instead. That estimate doesn’t even encompass what's to come next year. Bureau Report