Retail and Consumer Goods Supply Chains

A store-based retailer is a supply chain with a shop at the end of it. Its gross margin is decided by buying; its operating margin is decided by how cheaply and reliably goods move from a factory to a shelf (and, increasingly, from a shelf to a doorstep), and by how little inventory it has to carry to do it. The US leaders show the range of answers. Walmart built the lowest cost to serve in American retail from dense clusters of stores around its own distribution centres, a private truck fleet and data shared with suppliers — the Walmart–Procter & Gamble partnership of 1987 turned replenishment into a joint process and became the template for vendor-managed inventory. Costco carries roughly ~4,000 SKUs (company figure) against tens of thousands in a supercenter, caps markups at ~14% (15% on Kirkland Signature), and sells most of its inventory before it has paid for it. Target shows the failure and the fix: its Canadian expansion collapsed in under two years (2013–Jan 2015) on bad item data and empty shelves, and on 7 June 2022 it cut its profit outlook to clear excess inventory that the post-pandemic demand shift had left on its books — then rebuilt around stores as fulfilment nodes. Home Depot is turning from a store replenisher into a delivery network for professional contractors, buying SRS Distribution in 2024 (~$18.25bn, reported). In Europe, Inditex sources much of its fashion close to Spain and ships twice a week to every store, reporting record sales of ~€39.9bn and net profit of ~€6.2bn in fiscal 2025 (year to 31 Jan 2026; company, reported), while H&M's far-sourced volume model left it with ~$4.3bn of unsold inventory in early 2018 (reported). The discounters Lidl and Aldi run on limited assortment and private label; Tesco's 2014 accounting scandal (~£263m of overstated supplier income, reported) shows where buyer power ends. Behind the shelf, food-service distributors such as Sysco run a parallel network to restaurants and institutions. Since 2018 every one of these chains has also become a tariff manager: Section 301 duties on Chinese goods (2018–19), IEEPA tariffs (2025, struck down 20 Feb 2026), the 10% Section 122 tariff (24 Feb–24 Jul 2026) and the new Section 301 regime from 24 Jul 2026 (reported, verify) changed landed costs four times in two years. This section explains how retail networks are built and paid for, the retailer–supplier relationship, private label, fast fashion, grocery and food service, the store as a fulfilment node, shrink, and how retailers absorb tariffs and inventory cycles.