US STOCKS SNAPSHOT-Wall Street opens flat, Obama to speak on 'cliff'

Fri Nov 30, 2012 9:59am EST

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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.