μ · measurement · September 27, 2026 · 7 min
Do Micro-Influencers Actually Engage More?
Every agency deck cites the 80/20 rule: smaller accounts convert better. I checked whether that's a real power law or a tamer look-alike, on a small sample.
I take real papers and public data and test their claims, wages, marriage markets, sports analytics, ad measurement, and turn what I find into stories.
Every agency deck cites the 80/20 rule: smaller accounts convert better. I checked whether that's a real power law or a tamer look-alike, on a small sample.
America has no hereditary aristocracy, so its exclusions get called merit instead. The data on legacy admissions and resume audits says the sorting is just as real.
Uplift modeling is supposed to find people who convert because of an ad, not regardless of it. I tested the standard version on 14 million ad impressions from a real randomized experiment, and it didn't clearly beat a much simpler model.