Groupon Loses Groupies, Investors on the Run

Aug. 20 (Bloomberg) -- Citigroup Global Markets Managing Director Mark Mahaney discusses Groupon's poor performance. He speaks with Cory Johnson on Bloomberg Television's "Bloomberg West." (Source: Bloomberg)
One Minute Brief: Iran Talks, McDonald's Ups Pay
33:36 - Bloomberg briefs you on the top stories of the day including: the Iran nuclear talks, a pay rise for select McDonald's employees, and the U.K.'s pre-election debate.
  • Way Beyond the Deadline and No Agreement… Yet
  • Dollar Headed Higher After `Moment of Respite': Tihanyi
  • All Sides Determined to Avoid a Bad Deal: Thakur