UPDATE 1-Tennis-Davis Cup world group semifinal latest

Sat Sep 15, 2012 7:23pm BST

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Sept 15 (Infostrada Sports) - Latest from the Davis Cup World Group Semifinal matches on Saturday  Semifinal 1-Spain lead 6-U.S. 2- 1                5-Czech Republic lead 2-Argentina 2- 1
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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.