Uncertainty in the European and US economies is clouding the forecast for the global advertising market.
GroupM, part of WPP, slashed its 2012 predictions for global ad spending growth by 1.2 percentage points to 5.1 per cent because of the tenuous global economy, particularly in the eurozone, and political and fiscal uncertainties in the US. Global ad spending should reach $506.3bn this year, GroupM estimates.
