are a cutthroat business built on razor-thin margins.
to do it – from the old trick of positioning milk so that shoppers have to pass hundreds of other items first, to the deployment
of high-tech heat maps to track which aisles get the most traffic.
a kind of cultural icon, but viewers also learn how these companies are sorely tested by the likes of Whole Foods, independent
groceries, bulk retailers, and – last but not least – the publics ever-changing tastes.