The terrorist attacks on the United States on September 11, 2001, were expected to weaken U.S. economic conditions and reduce U.S. interest rates. How do you think the weaker U.S. economic conditions would have affected trade flows? How would this have affected the value of the dollar (holding other factors constant)? How do you think the lower U.S. interest rates would have affected the value of the U.S. dollar (holding other factors constant)?