Traders work on the floor at the New York Stock Exchange in New York, Monday, Dec. 31, 2012. World stocks cooled off Monday Jan. 7, 2013 as some investors sold shares to lock in profits following recent rallies. (AP Photo/Seth Wenig)

Associated Press
Traders work on the floor at the New York Stock Exchange in New York, Monday, Dec. 31, 2012. World stocks cooled off Monday Jan. 7, 2013 as some investors sold shares to lock in profits following recent rallies.  (AP Photo/Seth Wenig)
Traders work on the floor at the New York Stock Exchange in New York, Monday, Dec. 31, 2012. World stocks cooled off Monday Jan. 7, 2013 as some investors sold shares to lock in profits following recent rallies. (AP Photo/Seth Wenig)
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