Mark Ritson: Why you should fear the ‘digital duopoly’ in 2018

Long shadows, overly emotional TV ads and the uniform presence of Christmas trees in every shop window mean only one thing in marketing land: it is time for media agencies to look back at the current year’s ad spend and also project their estimates for the one that awaits us in January.
That’s exactly what GroupM, the largest media agency in the world, did this week at the UBS Global Media and Communications Conference in New York. But that is not what made the headlines. Among a ki