If you need some reading glasses in the United States, you don't have to break the bank to pick some up. That's important for older folks who need a little extra magnification. But in some parts of the world, people who need readers don't have that privilege. Today on the show, we'll find out why that is and learn the economic solution to the reading glasses shortage. Related episodes:Two indicators: supply chain solutions (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/adchoices NPR Privacy Policy

The U.S. economy is breathing a little easier after the International Longshoremen's Association reached a tentative agreement last week with the United States Maritime Alliance. The short-lived dockworkers strike reignited a debate over whether the president ought to intervene, invoking an old law on the books called the Taft-Hartley Act. On today's show, we explain what the Taft-Hartley Act is, why it was created and why it's still scorned by unions. Related episodes:What the data reveal about labor strikes (Apple / Spotify) Why residuals are taking center stage in actors' strike (Apple / Spotify) The never-ending strike (Apple / Spotify) The strike that changed U.S. labor 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/adchoices NPR Privacy Policy