Imams from the Grand Mosque of Paris carry a floral tribute, in front of the school where teacher Samuel Paty worked, in Conflans Sainte Honorine, on Friday. Photograph: Lewis Joly/AP Photo

The family of the murdered history and geography teacher Samuel Paty, who was beheaded by an 18-year-old Chechen refugee one year ago, will on Saturda(...)

Maurice Levy, chief executive officer of Publicis Groupe SA and John Wren, chief executive officer of Omnicom Group Inc., shake hands after signing the merger deal in Paris yesterday.

Publicis and Omnicom have confirmed plans for a merger of equals that would create the world’s largest advertising and marketing services group by (...)

Publicis chief executive  Maurice Levy and Omnicom chief executive John Wren  shake hands yesterday after signing the companies’ merger,  on the rooftop of the Publicis headquarters in Paris. Photographer: Balint Porneczi/Bloomberg

The merger between Publicis and Omnicom, which will create the world’s largest advertising and marketing services group by revenues, is a bold bet tha(...)