---
type: "synthesis"
arc: "power-economics"
articles: ["a005", "a015", "a092", "a097"]
tags: ["disintermediation", "value-chain", "checkout", "gatekeeper"]
id: "cross-day-disintermediation-power-shift"
sources: ["geo"]
sourceVaultSlug: "hbr-seg-geo"
originDay: 3
articleStem: "hbr-seg-geo"
sourceUrl: "(unified vault: 13 sources)"
sourceTitle: "HBR — Demand Ⅰ-A · GEO / AI-mediated discovery & agentic commerce"
---
Four articles trace the same power question — *who owns the end customer and the data* — to different conclusions, forming the corpus's economics spine.

- **Furr/Shipilov**: the [[framework-evolution-of-retail-power]] (receipt-level → customer-level → agent-mediated) predicts a [[concept-flattening-of-retail]] that hands leverage to logistics giants, differentiated brands, and the agents themselves; mid-tier retailers get squeezed ([[claim-mid-tier-retailers-struggle]]).
- **Bain**: the [[concept-retailers-prisoners-dilemma]] and [[framework-ai-agent-spectrum]] frame the choice; the failure state is the [[concept-dumb-pipe]]; the engine is [[concept-aggregator-economics]] ([[claim-intermediaries-compress-margins]]).
- **Greeven**: the bottleneck moves from human attention to the [[concept-agent-shelf]].
- **Hosanagar**: AI models become gatekeepers ([[claim-ai-as-gatekeeper]]), and the strategic fight is over checkout ([[claim-checkout-belongs-to-retailer]], [[action-retain-checkout-loop]] vs Bain's [[action-control-checkout]]).

The live empirical seam: OpenAI *retreated* from in-chat Instant Checkout ([[claim-autonomous-checkout-difficulty]]) while Google's UCP still pushes it ([[question-google-in-chat-checkout]]) — so 'checkout belongs to the retailer' is a strong-but-contested trend. All four agree the durable defense is *openness with control retained* — see [[cross-day-defensible-moats]]. The infrastructure that decides who wins is examined in [[cross-day-infrastructure-over-models]] and [[cross-day-protocol-governance-stack]].