UPDATE 3-Tennis-Davis Cup world group semifinal latest

Fri Sep 13, 2013 9:50pm BST

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Sept 13 (Infostrada Sports) - Latest from the Davis Cup World Group Semifinal matches on Friday 
Semifinal
4-Serbia are level with Canada 1- 1    
2-Czech Republic lead 3-Argentina 2- 0
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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.