Meet the World's 4th Most Innovative Man

Aug. 29 (Bloomberg) -- He doesn't count Facebook or the iPad among his inventions, but that doesn't stop Medtech CEO Bertin Nahum from being considered the 4th most revolutionary entrepreneur in the world. Bloomberg's Tom Gibson shows you why on Bloomberg Television's "Countdown."

What More Needs to Be Done at Groupon?
17:53 - Groupon reported fourth-quarter earnings that beat analysts’ estimates driven by purchases in North America. Groupon CEO Rich Williams speaks on "Bloomberg Markets." (Source: Bloomberg)
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