UPDATE 1-Tennis-WTA Championships women's singles semifinal results

Sat Oct 27, 2012 4:21pm BST

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Oct 27 (Infostrada Sports) - Results from the WTA Championships Women's Singles Semifinal matches on Saturday 
2-Maria Sharapova (Russia) beat 1-Victoria Azarenka (Belarus) 6-4 6-2 
3-Serena Williams (U.S.) beat 4-Agnieszka Radwanska (Poland) 6-2 6-1

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.