WPP's Sorrell: Twitter Is Still an Unproven Medium

Nov. 7 (Bloomberg) -- Sir Martin Sorrell, CEO & founder at WPP, explains how WPP works Twitter into its advertising plans for companies and examines Twitter’s ad growth potential. He speaks on Bloomberg Television’s “Bloomberg Surveillance.”

Sales Check With Hudson's Bay CEO Jerry Storch
39:33 - Hudson's Bay CEO Jerry Storch weighs in on Black Friday sales. He speaks on "Bloomberg Markets." (Source: Bloomberg)
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