Mobile will contribute to one third of global ad spend growth this year

Investments in mobile advertising continue to accelerate, according to a new report from Publicis Groupe’s ad agency ZenithOptimedia. Driven by the rapid adoption of smartphones and tablets, mobile advertising is predicted to account for 37% of global advertising spend growth this year and 31% next year.

ZenithOptimedia estimates that mobile advertising will grow 6 times faster than desktop ads between 2012 and 2015. Mobile advertising expenditures should grow by 59% annually. In contrast, the agency forecasts ads on the desktop will grow at an average of 10% a year.