Dow Jones industrial average jumps 400 points on central bank action

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In this Nov. 28, 2011 photo, specialist Joseph Mastrolia, center, works on the floor of the New York Stock Exchange. Stock markets rebounded Wednesday, Nov. 30, as renewed optimism over the state of the U.S. economy supported sentiment despite the failure of European finance ministers to announce radical new measures to deal with the crippling debt crisis afflicting the 17-nation eurozone. (AP Photo/Richard Drew)

NEW YORK (AP) — Dow Jones industrial average jumps 400 points on central bank action