Martin Sorrell: Marketers must lead fight against global uncertainty

Businesses must increase their investments in marketing and advertising in order to drive growth in an increasingly uncertain global economy, WPP chief executive Sir Martin Sorrell has said. Speaking at the IAB Engage conference in London this morning, Sorrell warned that businesses are becoming increasingly timid in their investment plans as a result of rising geo-political and macro-economic challenges. He referenced recent conflicts in the Ukraine, Hong Kong, Iraq and Syria, as well as gro...