BRIEF-Yum! down 1.2 percent in premarket trading
NEW YORK, April 23
NEW YORK, April 23 (Reuters) - Yum Brands Inc : * Shares down 1.2 percent in premarket trading
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.