BRIEF-Pain Therapeutics down 43 pct, DURECT down 36.5 pct premarket

NEW YORK Fri May 10, 2013 8:16am EDT

NEW YORK May 10 (Reuters) - Pain Therapeutics Inc : * Shares down 43 percent, DURECT Corp down 36.5 percent in premarket

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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.