The retail sector has seen a three percentage point drop in its share of total advertising spend in the US, according to WARC Media data.
The retail category took up 16.7% of total ad spend in 2017 in the US but this share has since shrunk to 13.6%, though still ranks top as the sector with the highest share of investment.
Out of the top ten categories with the highest share of ad spend, automotive has seen the biggest decrease, from 9.3%...