All three terms are a bit odd to me, but I think the theory is valid. In the advertising and fashion worlds don't these map to "trendsetters", "influencers", a

All three terms are a bit odd to me, but I think the theory is valid. In the advertising and fashion worlds don't these map to "trendsetters", "influencers", and "followers"? Fashion companies look for trendsetters to see what may be coming next, and pay influencers to advertise to everyone else (followers).