Maurice Levy (L), French advertising group Publicis Chief executive, and John Wren, head of Omnicom Group, gesture during a joint signature ceremony in Paris, in this July 28, 2013. Publicis Chief ... more 
Maurice Levy (L), French advertising group Publicis Chief executive, and John Wren, head of Omnicom Group, gesture during a joint signature ceremony in Paris, in this July 28, 2013. Publicis Chief Executive Maurice Levy said on May 9, 2014 the board of the advertising group backed him after a $35 billion merger with U.S. peer Omnicom fell apart because of a power struggle in what was billed a merger of equals. Picture taken July 28, 2013. REUTERS/Christian Hartmann (FRANCE - Tags: MEDIA BUSINESS) less 
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Reuters | Photo By CHRISTIAN HARTMANN / REUTERS
Fri, May 9, 2014 5:25 AM EDT