BRIEF-DragonWave U.S.-listed shares down in premarket after outlook

NEW YORK Thu Dec 6, 2012 8:58am EST

NEW YORK Dec 6 (Reuters) - DragonWave Inc : * Dragonwave U.S.-listed shares down 14 percent to $1.90 in premarket after outlook

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After wave of QE, onus shifts to leaders to boost economy

DAVOS, Switzerland - Central banks have done their best to rescue the world economy by printing money and politicians must now act fast to enact structural reforms and pro-investment policies to boost growth, central bankers said on Saturday.