WEF founder upbeat on economic outlook

qmb davos 2013 wef founder klaus schwaub intv_00000321.jpg
qmb davos 2013 wef founder klaus schwaub intv_00000321.jpg

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    WEF founder upbeat on economic outlook

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Klaus Schwab, founder of the World Economic Forum, says his "glass is more than half full." CNN's Richard Quest asks why.