Aviva DeKornfeld/NPR

Episode 945: The Liberty City

A man in Texas had a dream: To build a whole new kind of city, with no property tax, no debt, and a whole lot of freedom. | Subscribe to our weekly newsletter here.

Episode 945: The Liberty City

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When Charlie Shrem was in prison, he engaged in a thought experiment involving blockchain technology and canned mackerel. Heidi Coppock-Beard/Getty Images hide caption

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Heidi Coppock-Beard/Getty Images

Episode 753: Blockchain Gang

Charlie Shrem went from living in his parents' basement, to bitcoin millionaire, to federal prison in just a few years. | Subscribe to our weekly newsletter here.

Episode 753: Blockchain Gang

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Unicode/Apple

Episode 944: We Should Have Mentioned That

Sometimes we forget to mention something. And our listeners always let us know. Today on the show, we make good. | Subscribe to our weekly newsletter here.

Episode 944: We Should Have Mentioned That

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Chelsea Beck/NPR

Episode 763: BOTUS

Two years ago, we built a machine that bought and sold stocks automatically based on President Trump's tweets. | Subscribe to our weekly newsletter here.

Episode 763: BOTUS

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Falling unicorn. KARL-JOSEF HILDENBRAND/AFP/Getty Images hide caption

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KARL-JOSEF HILDENBRAND/AFP/Getty Images

Episode 943: Unicorn Cowboy

The risk-addicted investor who made WeWork possible and changed the way startups work. | Subscribe to our weekly newsletter here.

Episode 943: Unicorn Cowboy

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DAMIEN MEYER/AFP/Getty Images

Episode 942: Capitalism In The Courtroom

Investors can fund lawsuits for profit, which gives more people access to the courts. But some worry it will warp the justice system. | Subscribe to our weekly newsletter here.

Episode 942: Capitalism In The Courtroom

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Across the George Washington Bridge, where legal sports betting can begin. Drew Angerer/Getty Images hide caption

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Drew Angerer/Getty Images

Episode 941: Three Bets

We jog to New Jersey to bet on tennis, we solve a mystery in Las Vegas, and we venture into the world of video game loot. | Subscribe to our weekly newsletter here.

Episode 941: Three Bets

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Anil Bokil, a mechanical engineer by training, had a plan for demonetization. He presented it to now Prime Minister Narendra Modi in 2013. Chhavi Sachdev /NPR hide caption

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Chhavi Sachdev /NPR

Episode 770: When India's Cash Disappeared

When India suddenly got rid of most of its cash, in an effort to end corruption and modernize its economy, chaos ensued. | Subscribe to our weekly newsletter here.

Episode 770: When India's Cash Disappeared

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Yann Schreiber/AFP/Getty Images

Episode 940: Interest Rates... Why So Negative?

All over the world, interest rates are very, very low. In some places, they're negative: you lend out money, and get less back. | Subscribe to our weekly newsletter here.

Episode 940: Interest Rates... Why So Negative?

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Flint sit-down strikers sitting down. Walter P. Reuther Library, Archives of Labor and Urban Affairs, Wayne State University. hide caption

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Walter P. Reuther Library, Archives of Labor and Urban Affairs, Wayne State University.

Episode 658: Strike One

Strikes these days are pretty boring. But they weren't always like this. In the past, strikers risked their lives. | Subscribe to our weekly newsletter here.

Episode 658: Strike One

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Portraits of Studs Terkel. The Studs Terkel Radio Archive/WFMT hide caption

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The Studs Terkel Radio Archive/WFMT

Episode 939: The Working Tapes Of Studs Terkel

Hear what ordinary people told Studs Terkel about their jobs in the 70s — and what they have to say now. | Subscribe to our weekly newsletter here.

Episode 939: The Working Tapes Of Studs Terkel

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Illmind's library of beats is sought after by artists from LL Cool J to Bruno Mars. @KofMotivation/Courtesy of Illmind hide caption

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@KofMotivation/Courtesy of Illmind

Episode 794: How To Make It In The Music Business

The hidden economy of producers buying and selling sonic snippets, texting each other beats, and angling for royalties. | Subscribe to our weekly newsletter here.

Episode 794: How To Make It In The Music Business

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Post-WWII city ruins in Germany. Martin Badekow/Underwood Archives/Getty Images hide caption

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Martin Badekow/Underwood Archives/Getty Images

Episode 938: The Marshall Plan

Sometimes the way to help yourself is to help your enemy. After WWII, the U.S. launched what might be the most successful intervention in history, rebuilding Germany and also the rest of Western Europe. | Subscribe to our weekly newsletter here.

Episode 938: The Marshall Plan

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The same mill in Massachusetts has been making U.S. dollar bills for over 130 years. Robert Benincasa/NPR hide caption

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Robert Benincasa/NPR

Episode 371: Where Dollar Bills Come From

Every dollar bill in the world comes from the same paper mill in Massachusetts. Today on the show, we get a front-row seat to the dollar-making process. | Subscribe to our weekly newsletter here.

Episode 371: Where Dollar Bills Come From

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The U.S. Department of Housing and Urban Development (HUD) headquarters in Washington, D.C. Bloomberg/Bloomberg via Getty Images hide caption

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Bloomberg/Bloomberg via Getty Images

Episode 937: Moving To Opportunity?

In the 90s, the government ran an experiment: What happens if we move people out of high-poverty neighborhoods and into low-poverty ones? Housing policy as hope? The results surprised them. | Subscribe to our weekly newsletter here.

Episode 937: Moving To Opportunity?

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Mode, not average, is a better way to find the typical American. Pal Szilagyi Palko / EyeEm/Getty Images/EyeEm hide caption

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Pal Szilagyi Palko / EyeEm/Getty Images/EyeEm

Episode 936: The Modal American

Kenny takes Jacob on a nerdy quest to find the "typical American." Naturally, it ends up harder⁠—and nerdier⁠—than we planned, and the answer is more subtle than we expected. | Subscribe to our newsletter here.

Episode 936: The Modal American

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Americans refrigerate their eggs. Europeans don't. There's a reason for this. Bill Hinton/Moment Editorial/Getty Images hide caption

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Bill Hinton/Moment Editorial/Getty Images

Episode 935: You Asked For A Food Show

The top producer of Top Chef helps us spice up this food edition of listener questions. How do you master the salad bar? Why do Americans refrigerate eggs? The story of Choco Pies and more. | Subscribe to our weekly newsletter here.

Episode 935: You Asked For A Food Show

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The yield curve is inverted. Does that mean a recession is on the way? NPR hide caption

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NPR

Episode 934: Two Yield Curve Indicators

An inverted yield curve has predicted recessions for the past six decades. The curve is inverted right now. What does that tell us? | Subscribe to our newsletter here.

Episode 934: Two Yield Curve Indicators

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When hunting for helium, you need to drill deep down into the earth, well past the Jurassic period. These rocks are really old. Sarah Gonzalez hide caption

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Sarah Gonzalez

Episode 933: Find The Helium

Helium is so special, and so rare, that the U.S. government once tried to buy it all up. And hide it. But the government's helium stockpile is running low. And we need it for MRI machines and NASA rockets.

Episode 933: Find The Helium

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Technicians install solar panels on a roof. This process has gotten a lot faster, and cheaper, over the years. AP hide caption

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AP

Episode 616: How Solar Got Cheap

For a long time, only rich people could afford to put solar panels on the roof. Not anymore. Here's what changed.

Episode 616: How Solar Got Cheap

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An African forest elephant in Odzala-Kokoua National Park in the Republic of the Congo. Education Images/Universal Images Group via Getty hide caption

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Education Images/Universal Images Group via Getty

Episode 932: Deep Learning With The Elephants

Elephants are in danger. Counting them is crucial to saving them. But they're hard to see in the rainforest. So scientists are enlisting the help of AI technology.

Episode 932: Deep Learning With The Elephants

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The layout of the office belonging to one of Costa Rica's most notorious con artists. The IT guy at the office made these sketches to help authorities shut it down. Felipe Fernandez hide caption

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Felipe Fernandez

Episode 931: The IT Guy Vs. The Con Artist

A notorious con artist offered Felipe an IT job. He took the job —and tried to con the con man. | Plus, listen to a full double feature all about cons here.

Episode 931: The IT Guy Vs. The Con Artist

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One of these babies is Planet Money correspondent Karen Duffin; the other is her twin, Marie. We have no idea who's who (and neither do their parents). Karen Duffin hide caption

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Karen Duffin

Episode 930: Twins

Scientists have studied twins for years, hoping to figure out how big a role genes play in human behavior. Our very own pair of twin reporters are on the case.

Episode 930: Twins

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Stress on the floor of the New York Stock Exchange. Drew Angerer/Getty Images hide caption

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Drew Angerer/Getty Images

Episode 598: That Time We Shorted America, Part Two

Everyone said betting against the entire stock market was a terrible idea. We did it anyway. Today, we find out the results, and revisit the first short ever done in the 17th century.

Episode 598: That Time We Shorted America, Part Two

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