An employee arranges a digital price tag for vegetables at the Whole Foods store in the Silver Lake neighborhood of Los Angeles. Patrick T. Fallon/Bloomberg via Getty Images
Patrick T. Fallon/Bloomberg via Getty Images
Grocery store prices are changing faster than ever before — literally. This month, Walmart became the latest retailer to announce it’s replacing the price stickers in its aisles with electronic shelf labels. The new labels allow employees to change prices as often as every ten seconds.
“If it’s hot outside, we can raise the price of water and ice cream. If there’s something that’s close to