The upsurge in digital expenditure will lead the medium to account for 27 per cent of the global advertising spend in 2016 and further up to 29.3 per cent in 2017, according to projections by Carat. The global media network, in its latest ad spend report, says that despite declining slightly year-on-year, television continues to command the highest share of global advertising spend, with a predicted 41.4 per cent in 2016 and 40.7 per cent in 2017