Publicis to Merge With Omnicom to Create Advertising Leader

Publicis to Merge With Omnicom to Create Advertising Leader

Balint Porneczi/Bloomberg

Maurice Levy, chief executive officer of Publicis Groupe SA, left, and John Wren, chief executive officer of Omnicom Group Inc., shake hands on the merger during a news conference held on the rooftop of the Publicis headquarters in Paris, France, on July 28, 2013.