What Role Does Evan Williams Play at Twitter?

May 7 (Bloomberg) -- Bloomberg's Jon Erlichman reports on the Wired Business Conference and his interview with Twitter Co-Founder, Evan Williams. He speaks on Bloomberg Television's "Market Makers." (Source: Bloomberg)

Will Grexit Join Brexit as a Concern for European Union?
10:57 - Wolfgango Piccoli, managing director at Teneo Intelligence, and David Stubbs, global market strategist at JPMorgan Asset Management, talk about the geopolitical concerns for Europe and the performance of the European economy. They speak on "Bloomberg Surveillance." (Source: Bloomberg)
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