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Mass deportations. What would actually happen—economically—if the President-elect follows through on promises to deport millions of people from America.We don't have to guess.Today we have two stories from Planet Money's daily podcast, The Indicator. First, the story from another time the US cracked down on immigration with the expressed intent of helping the economy. We look at how that worked out. And then we distill 20 years of research on immigrants and economic growth. What does immigration do for an economy? What types of immigration help? And who benefits?Our most recent newsletter goes into more depth on some of this. Part one of two here. Subscribe to our newsletter here.This episode is hosted by Adrian Ma, Darian Woods, and Wailin Wong. These episodes of The Indicator were originally produced by Cooper Katz McKim and Julia Ritchey, and engineered by Kwesi Lee and Maggie Luthar. They were fact-checked by Angel Carreras and Sierra Juarez. Kate Concannon is The Indicator's Editor.Help support Planet Money and hear our bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Every ten years, a group of German farmers gather in the communal farm fields of the Osing for the Osingverlosung, a ritual dating back centuries. Osing refers to the area. And verlosung means "lottery," as in a land lottery. All of the land in this communal land is randomly reassigned to farmers who commit to farming it for the next decade.Hundreds of years ago, a community in Germany came up with their own, unique solution for how to best allocate scarce resources. For this community, the lottery is a way to try and make the system of land allotment more fair and avoid conflict.Today on the show, we go to the lottery and follow along as every farmer has a shot at getting the perfect piece of land — or the absolute worst piece of land! And we see what we can learn from this living, medieval tradition that tries to balance fairness and efficiency.This episode was hosted by Erika Beras and Emma Peaslee. It was produced by Emma Peaslee. It was edited by Jess Jiang. Reporting help from Sofia Shchukina. It was fact checked by Sierra Juarez. It was engineered by Cena Loffredo. Alex Goldmark is Planet Money's executive producer.Help support Planet Money and hear our bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

This is the story behind one of the most valuable — and perhaps, most improbable — technologies humanity has ever created. It's a breakthrough called extreme ultraviolet lithography, and it's how the most advanced microchips in the world are made. The kind of chips powering the latest AI models. The kind of chips that the U.S. is desperately trying to keep out of the hands of China.For years, few thought this technology was even possible. It still sounds like science fiction: A laser strong enough to blast holes in a bank vault hits a droplet of molten tin. The droplet explodes into a burst of extreme ultraviolet light. That precious light is funneled onto a wafer of silicon, where it etches circuits as fine as a strand of DNA. Only one company in the world that can make these advanced microchip etching machines: a Dutch firm called ASML.Today on the show, how this breakthrough in advanced chipmaking happened — and how it almost didn't. How the long-shot idea was incubated in U.S. nuclear weapons laboratories and nurtured by U.S. tech giants. And, why a Dutch company now controls it.This episode was hosted by Jeff Guo and Sally Helm. It was produced by Willa Rubin and edited by Jess Jiang. It was fact-checked by Dania Suleman, and engineered by Patrick Murray. Alex Goldmark is Planet Money's executive producer.Help support Planet Money and hear our bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy