<b>Geo Pulse #2 — Theme: nobody agrees what a "Tier" is</b>

<b>Geo Pulse #2 — Theme: nobody agrees what a "Tier" is</b>

This issue: the tier label is a folk taxonomy, not a standard. Four ways the line gets drawn — know which one your network uses.

— → <b>The classic 1-2-3</b>: Tier-1 = US/UK/CA/AU/NZ + Western Europe; Tier-3 = lowest CPM. Origin: ad-network slang, never a body that ratified it.
— → <b>The eCPM-sorted view</b>: some networks just rank countries by realized eCPM and slice into thirds. Your "Tier-2" is literally their median revenue band. Credit: PropellerAr / push-network rate cards.
— → <b>GDP-per-capita proxy</b>: affiliates borrow World Bank income groups (high / upper-middle / lower-middle / low) as a sanity check. Source: World Bank country classifications.
— → <b>Language-tier overlay</b>: a separate axis — English-native vs. needs-localization — that cuts across revenue tiers and predicts creative cost. Credit: localization-side discourse (Nimdzi, Slator).

Takeaway: when a manager says "Tier-2," ask <i>by which metric</i>. The same country sits in three different buckets depending on who's counting.