Marketers have become accustomed to thinking about advertising spend according to the two broad buckets of brand-building channels (that build long-term brand equity) and performance-led activation channels (that drive immediate sales). As often happens to simplifications designed to get a message across, they can come to stand in for the hard yards of analysis.
The problem is also that both words say a lot to people outside the marketing department: one does things; the other is theoretical. But it also narrows the definitions understood by marketers, and carries the assumption that some channels work on some time horizons while others...