Since 2020, grocery prices have shot up. If you're looking to save a buck, it's often more affordable to shop for groceries at a big retailer like Walmart. But some smaller grocers say those low prices are the result of an unfair playing field—and they're looking to a little-used antitrust law from the 1930s as a solution. Today, we consider the Robinson-Patman Act and whether reviving it could bring consumers some relief.Related episodes: Grocery delivery wars (Apple / Spotify) Feeling inflation in the grocery store (Apple / Spotify) For sponsor-free episodes of The Indicator from Planet Money, subscribe to Planet Money+ via Apple Podcasts or at plus.npr.org. Music by Drop Electric. Find us: TikTok, Instagram, Facebook, Newsletter. Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy