Spanish telecom giant Telefonica SA is teaming up with an arm of private-equity powerhouse Blackstone Group LP in a mobile-advertising venture.
WSJ.com: US Business, Wall Street Journal: Business
Tue, 04/15/2014 - 4:01pm
Spanish telecom giant Telefonica SA is teaming up with an arm of private-equity powerhouse Blackstone Group LP in a mobile-advertising venture.