What: HBR argues that declining stores reflect the failure of the traditional merchant model — not the death of physical retail — and that retailers should shift toward a platform model in which brands own more of the inventory risk.

Why it is important: It reframes AI-driven buying agents as an accelerant, not a side issue: as demand becomes more transparent and volatile, retailers still carrying inventory risk are the most exposed, sharpening the urgency of the platform shift.

The traditional retail merchant model — forecasting demand, buying inventory ahead of the season, and absorbing the cost of getting it wrong — is buckling under faster-changing consumer preferences, shorter brand cycles, and social-media-driven demand shifts. This is not a case for consumer flight from stores: closures reflect an outdated risk allocation, not the failure of physical retail.

The authors argue for a shift toward a platform model, in which retailers earn from traffic, curation, and access rather than owning every inventory decision. Harrods' concession-based partnerships are cited as a model already working, alongside Amazon and Alibaba's agency approach to online marketplaces. Retailers considering the shift should ask where forecast error is costliest, where brand expertise adds the most value, what control they must retain (data, standards, layout), and whether ruinous inter-store competition justifies the change.

The stakes are rising further with the emergence of AI-powered buying agents, which will make demand more transparent and volatile in real time, redirecting purchases faster than traditional merchandising can respond and increasing the cost of retailers still carrying inventory risk directly.

IADS Notes: The argument that department stores should behave as platforms rather than merchants finds direct support in recent trade coverage. Frasers Group's acquisition of Harvey Nichols was read as evidence that large physical footprints still hold value when repurposed around curation, services and experience rather than product breadth alone, as reported by the Financial Times in August 2026. Saks Global's post-bankruptcy operating model illustrates the same shift in practice: the retailer now runs more than 350 concession and consignment agreements alongside traditional wholesale, moving inventory risk onto vendors in exchange for a broader curated assortment, according to WWD's coverage from June 2026. Store-in-store partnerships that the HBR piece treats as still marginal in the US are nonetheless spreading: Ikea's shop-in-shop tie-up with Best Buy, launched across ten US locations, was noted by Chainstore Age in November 2025. In the UK, Next's 132,000 sq ft multi-brand flagship at Bluewater — combining its own ranges with third-party labels including Ted Baker, Gap and Bath & Body Works — was covered by Retail Week in July 2026 as part of a broader push toward large-format, curated multi-brand destinations.

The store isn't dead—but the merchant model is