LONDON, June 16 : The chief executive of Vodafone urged European governments to speed up regulatory changes that will enable mobile phone groups to consolidate their market positions and drive the investment needed to keep up with the United States and Asia. "I think speed is always the challenge, and the faster the better," Margherita Della Valle told the Reuters Next summit in London on Tuesday, referring to an EU consultation on merger guidelines.  Della Valle, at the helm of Vodafone for

Tag-uri: Vodafone