BRIEF-ARM U.S.-listed shares down in premarket after Morgan Stanley downgrade

NEW YORK Tue Jan 15, 2013 12:40pm GMT

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NEW YORK Jan 15 (Reuters) - ARM Holdings PLC : * Arm holdings U.S.-listed shares down 5 percent to $40.28 in premarket after Morgan Stanley downgrade

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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.