Dive Brief: 

• World advertising leaders like Publicis Groupe and Interpublic Group predict that ad spending will grow at a faster rate in 2014. 
• The growth is expected to come from 2014's Winter Olympics, the World Cup and emerging markets like China and mobile. 
• Predictions on just how much spending will grow vary by firm, but all the world ad leaders predict there will still be growth. 

Dive Insight: 

Concerns about the U.S. and European economies had many in the industry worried about ad spending's direction, but the predictions from these large firms are reassuring. Worldwide events like the Olympics and Brazil will more than likely raise spending, and markets like China and mobile remain ripe for growth.