Mexico tycoon Slim's retail, banking units challenge telco ruling

lunes 31 de marzo de 2014 09:48 GYT

MEXICO CITY, March 31 (Reuters) - Mexican billionaire Carlos Slim's Grupo Carso and Grupo Inbursa have challenged a ruling by the new telecommunications regulator alleging both hold dominant market positions, the companies said on Monday. (Reporting by Tomas Sarmiento)