Productivity is our economic measure for how far our work goes, as individuals and as a society over all. It plays an important role in determining our quality of life, the prices of our goods and services, and, to some extent, the amount of free time we have. Today, we explore how thousands of years of productivity advancements transformed something now so standard that we take it for granted: light. | At this Summer School, phones ARE allowed during class... Check out this week's PM TikTok! | Listen to past seasons of Summer School here.

The Federal Reserve plays a very important role in the economy. When things start to look uncertain, the central bank is tasked with stepping in to restore people's confidence in the economy. But how do they do it? On today's episode we dive deep on monetary policy and the role of the fed. |At this Summer School, phones ARE allowed during class... Check out this week's PM TikTok! | Listen to past seasons of Summer School here.

International trade is the web of cross-border relationships that binds economies together. Because of trade we have access to cheaper, higher-quality goods, and we get to benefit from other countries' cultures. Economics tells us trade makes society, overall on average, better off, but that doesn't mean everyone wins. Today, the good and bad of trade through the eyes of workers in developing economies who make the things sold around the world. We follow them as they navigate the ever-shifting international trade environment. |At this Summer School, phones ARE allowed during class... Check out this week's PM TikTok! | Listen to past seasons of Summer School here.

You can learn a lot about a person from their job. The same can be said of an economy. The market for jobs can us a lot about how the economy is doing, but more importantly, it is where we look to see who the economy is working for, and who is left behind. In today's lesson we'll visit two workplaces each facing a different labor puzzle. At one end, there's the question of when to replace a worker with a robot, and what it is like to be that worker waiting for the robots to come. We'll also visit a farm where raising wages aren't enough to attract the workers needed to do the work. How wages are set, and who gets the raises on this session of Summer School. | Subscribe to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney. |At this Summer School, phones ARE allowed during class... Check out this week's PM TikTok! | Listen to past seasons of Summer School here.

Inflation can be one of the scariest forces in the economy. As prices rise and your dollar doesn't go as far, you feel poorer, and it's all out of your control. To better understand inflation, we turn to the story of Brazil, where, in the 90s, hyperinflation threatened to derail the whole economy until the country turned to a group of unlikely heroes: four drinking buddies. | Subscribe to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney. |At this Summer School, phones ARE allowed during class... Check out this week's PM TikTok! | Listen to past seasons of Summer School here.