Publicis Groupe to Spend $4 Billion on Acquisitions Over Next Five Years

If you thought Publicis Groupe's appetite for acquisitions was sated after a string of mega digital deals -- including LBi ($450 million) and Rokkan ($575 million) in 2012, Rosetta ($575 million) in 2011, Razorfish ($530 million) in 2009, and Digitas ($1.3 billion) in 2007 – then think again.