---
type: "synthesis"
sources: ["commercial"]
tags: ["friction", "self-selection", "segmentation", "synthesis"]
id: "xd-friction-as-a-filter"
sourceVaultSlug: "hbr-seg-commercial"
originDay: 5
articleStem: "hbr-seg-commercial"
sourceUrl: "(unified vault: 9 sources)"
sourceTitle: "HBR — Demand Ⅰ-C · Commercial mechanics — pricing, fit, sales"
---
Several articles independently discover that *intentional* friction is a segmentation tool — 'the friction is the feature.' But they disagree on its sign, which is the interesting tension.

- **A022 (friction as good):** [[concept-discounting-hurdles|discounting hurdles]] (coupons, price-match requests, clubs) force price-sensitive buyers to [[action-implement-price-hurdles|self-identify]], protecting full-price revenue from [[concept-profit-cannibalization|cannibalization]]. Friction is deliberately erected.
- **A003 (friction as gate):** the [[action-create-qualification-checklist|qualification checklist]] adds friction to *reject* poor-fit leads early — friction on the seller's side that filters demand.
- **A008 (friction as filter, reversed):** auto-renew is *structural friction* that, counter-intuitively, filters *for* low-quality [[concept-inert-naive-consumer|naïve consumers]] and suppresses good ones ([[concept-acquisition-suppression]]). Here the friction sorts in the *wrong* direction unless you're an incumbent.
- **A023 (friction as value signal):** [[concept-scarcity-framing|scarcity]] and [[action-limit-free-access|limited free access]] add friction that signals worth.

The synthesis: friction is neither good nor bad — its value depends entirely on *which* customers it sorts toward you. Auto-renew friction and discount-hurdle friction look identical mechanically but sort opposite qualities of customer. See [[xd-segmenting-the-demand-curve]] and [[xd-incumbent-vs-challenger-positioning]].