Avatars tested by the team in the study: On the right, a basic cartoon-like Avatar, and on the left a more human-looking avatar. Credit: Yanwen Yang. Artificial intelligence is changing how we shop online, but when it comes to selling products through livestreams, humans still have the edge. A new study from the UBC Sauder School of Business shows that AI-powered "digital streamers"—virtual salespeople who appear in livestreams to promote products—don't pe