Cornerization, or in-store cornering, refers to the trend among large food retailers to create numerous small spaces dedicated to specific brands or products within their stores. These corners, often financially linked to the main retailer, are generally created in response to the rise of online commerce. Indeed, increased competition from digital platforms has led traditional retailers to free up retail space previously occupied by sectors such as clothing, household appliances, or cultural products. This surplus sales space has then been repurposed for these corners, thus diversifying the product offerings within stores. For example, the installation of corners by brands like Electro Dépôt, Boulanger, or Decathlon within Auchan hypermarkets perfectly illustrates this cornerization phenomenon.