In 2007, Uruguay had a massive problem with no obvious fix. The economy of this country of 3.5 million people was growing, but there wasn't enough energy to power all that growth.

Ramón Méndez Galain was, at the time, a particle physicist, but he wanted to apply his scientific mind to this issue. He started researching different energy sources and eventually wrote up a plan for how Uruguay's power grid could transition to renewable energy. It would be better for the climate, and, he thought, in the long run it would be the most economical choice Uruguay could make.

Méndez Galain shared his plan online and in a series of informal lectures. Then, one day he received a phone call from the office of the president of Uruguay, inviting him to put his plan into action.

Countries all over the world have announced lofty goals to reduce the emissions that cause climate change. But Uruguay actually did it. In a typical year, 98% of Uruguay's grid is powered by green energy. How did it get there? It involved a scientist, an innovative approach to infrastructure funding, and a whole lot of wind.

Today's show was hosted by Erika Beras and Amanda Aroncyzk. It was produced by Willa Rubin with help from Emma Peaslee. It was engineered by Maggie Luthar, fact-checked by Sierra Juarez and edited by Keith Romer. Alex Goldmark is our executive producer.

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Prices go up. Occasionally, prices go down. But for 70 years, the price of a bottle of Coca-Cola didn't change. From 1886 until the late 1950s, a bottle of coke cost just a nickel.

On today's show, we find out why. The answer includes a half a million vending machines, a 7.5 cent coin, and a company president who just wanted to get a couple of lawyers out of his office.

This episode originally ran in 2012.

This episode was hosted by David Kestenbaum. Alex Goldmark is Planet Money's executive producer.

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Union membership in the U.S. has been declining for decades. But, in 2022, support for unions among Americans was the highest it's been in decades. This dissonance is due, in part, to the difficulties of one important phase in the life cycle of a union: setting up a union in the first place. One place where that has been particularly clear is at the Volkswagen plant in Chattanooga, Tennessee.

Back in 2008, Volkswagen announced that they would be setting up production in the United States after a 20-year absence. They planned to build a new auto manufacturing plant in Chattanooga.

Volkswagen has plants all over the world, all of which have some kind of worker representation, and the company said that it wanted that for Chattanooga too. So, the United Auto Workers, the union that traditionally represents auto workers, thought they would be able to successfully unionize this plant.

They were wrong.

In this episode, we tell the story of the UAW's 10-year fight to unionize the Chattanooga plant. And, what other unions can learn from how badly that fight went for labor.

This episode was hosted by Amanda Aronczyk and Nick Fountain. It was produced by Willa Rubin. It was engineered by Josephine Nyounai, fact-checked by Sierra Juarez, and edited by Keith Romer. Alex Goldmark is our executive producer.

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Right now, a lot of school districts across the country are making a pretty giant change to the way public education usually works. Facing teacher shortages and struggling to fill vacant spots, they are finding a new recruitment tool: the four-day school week.

Those districts are saying to teachers, "You can have three-day weekends all the time, and we won't cut your pay." As of this fall, around 900 school districts – that's about 7% of all districts in the U.S. – now have school weeks that are just four days long.

And this isn't the first time a bunch of schools have scaled back to four days, so there is a lot of data to lean on to figure out how well it works. In this episode, teachers love the four-day school week, and it turns out even parents love it, too. But is it good for students?

This episode was produced by Sam Yellowhorse Kesler with help from Willa Rubin. It was edited by Molly Messick and engineered by Maggie Luthar. Fact-checking by Sierra Juarez. Alex Goldmark is our executive producer.

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You might expect to find economic concepts in the pages of an economics textbook. But you know where you can really see a lot of economic concepts in action? Buffets.

Here at Planet Money we believe there's a lot of economics going on at the all-you-eat buffet, tucked in between the mountains of brisket and troughs of mashed potatoes. From classic concepts like adverse selection, sunk costs, diminishing marginal returns, to more exotic economic mysteries, like the flat rate pricing bias.

Today on the show, we're headed to the place where the modern buffet may have been born: Las Vegas. Our mission? To feast ourselves on all the economics we can handle at the all-you-can-eat buffet. And along the way, an economist and fellow buffet-lover will teach us his hyper-rational strategy for optimizing his buffet experience.

Today's show was produced by James Sneed and Nick Fountain with help from Emma Peaslee. It was edited by Jess Jiang, engineered by James Willetts, and fact-checked by Sierra Juarez. Alex Goldmark is our executive producer.

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Some of the most influential and beloved novels of the last few years have been about money, finance, and the global economy. Some overtly so, others more subtly. It got to the point where we just had to call up the authors to find out more: What brought them into this world? What did they learn? How were they thinking about economics when they wrote these beautiful books?

Today on the show: we get to the bottom of it. We talk to three bestselling contemporary novelists — Min Jin Lee (Pachinko and Free Food for Millionaires), Emily St. John Mandel (Station Eleven, The Glass Hotel and Sea of Tranquility), and Hernan Diaz (Trust, In the Distance) – about how the hidden forces of economics and money have shaped their works.

This episode was hosted by Mary Childs and Alexi Horowitz-Ghazi. It was produced by Willa Rubin, edited by Molly Messick, and engineered by Neisha Heinis. Fact-checking by Sierra Juarez.

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Always free at these links: Apple Podcasts, Spotify, Google Podcasts, the NPR app or anywhere you get podcasts.

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Music: Universal Music Production - "This Summer," "Music Keeps Me Dancing," "Rain," and "All The Time."

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Here at Planet Money, Thanksgiving is not just a time to feast on turkey, stuffing, mashed potatoes, green bean casseroles and pie(s). It's also a time to feast on economics. Today, we host a very Planet Money Thanksgiving feast, and solve a few economic questions along the way.

First: a turkey mystery. Around the holidays, demand for turkey at grocery stores goes up by as much as 750%. And when turkey demand is so high, you might think that the price of turkey would also go up. But data shows, the price of whole turkeys actually falls around the holidays; it goes down by around 20%. So what's going on? The answer has to do what might be special about supply and demand around the holidays.

We also reveal what is counted (and not counted) in the ways we measure the economy.

And we look to economics to help solve the perennial Thanksgiving dilemma: Where should each dinner guest sit? Who should sit next to whom?

This episode was hosted by Erika Beras and Jeff Guo. It was produced by James Sneed with an assist from Emma Peaslee and edited by Jess Jiang. It was fact-checked by Sierra Juarez and engineered by Josh Newell.

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In the state of Oregon, there is a glut of grass. A wealth of weed. A crisis of chronic.

And, jokes aside, it's a real problem for people who work in the cannabis industry like Matt Ochoa. Ochoa runs the Jefferson Packing House in Medford, Oregon, which provides marijuana growers with services like drying, trimming and packing their product. He has seen literal tons of usable weed being left in marijuana fields all over the state of Oregon. Because, Ochoa says, there aren't enough buyers.

There are just over four million people in Oregon, and so far this year, farmers have grown 8.8 million pounds of weed. Which means there's nearly a pound of dried, smokable weed for every single person in the state of Oregon. As a result, the sales price for legal marijuana in the last couple of years has plummeted.

Economics has a straightforward solution for Oregon's overabundance problem: trade! But, Oregon's marijuana can only be sold in Oregon. No one in any state can legally sell weed across state lines, because marijuana is still illegal under federal law. On today's episode, how a product that is simultaneously legal and illegal can create some... sticky business problems.

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Would you say that you and your family are better off or worse off, financially, than you were a year ago? Do you think in 12 months we'll have good times, financially, or bad? Generally speaking, do you think now is a good time or a bad time to buy a house?

These are the kinds of questions baked into the Consumer Sentiment Index. And while the economy has been humming along surprisingly well lately, sentiment has stayed surprisingly low.

Today on the show: We are really bummed about the economy, despite the fact that unemployment and inflation are down. So, what gives? We talk to a former Fed economist trying to get to the heart of this paradox, and travel to Michigan to check in on the place where they check the vibes of the economy.

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Remember pagers? They were huge in the 80s — these little devices that could receive short messages. Sir Mix-A-Lot even had a song about them! But then cell phones came along, and pagers more or less became obsolete.

Except there's one group of people who still carry pagers: medical doctors. At a surprisingly large number of hospitals, the pager remains the backbone of communication. Need to ask a doctor a question? Page them. Need to summon a doctor to an emergency? Page them. And then... wait for them to call you back.

Almost everyone agrees that pagers are a clunky and error-prone way for doctors to communicate. So why do so many hospitals still rely on them?On today's show: A story about two doctors who hatched a plan to finally rid their hospital of pagers. And the surprising lessons they learned about why some obsolete technologies can be so hard to replace.

This episode was hosted by Jeff Guo and Nick Fountain. It was produced by Sam Yellowhorse Kesler. It was edited by Keith Romer and fact-checked by Sierra Juarez. It was engineered by Robert Rodriguez with help from Maggie Luthar. Alex Goldmark is Planet Money's executive producer.

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What if you could borrow money on the cheap and use it to pay for just about anything? The U.S. government can, and does, with U.S. Treasuries. But the market for Treasuries might be more fragile than we know.

In this episode, Yesha Yadav of Vanderbilt Law School explains why.

This episode was first published as a bonus episode for our Planet Money+ listeners. Today we're making it available for everyone. To hear more episodes like this, and to hear Planet Money and The Indicator without sponsor messages, support the show by signing up for Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.

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Maybe she's born with it, maybe it's __________.

The best part of waking up, is _______ in your cup!

Got ____?

If you can identify these brands based on tagline alone, it's possible you... are a 90s kid.

The '90s were arguably the peak moment of advertisers trying to make an impression on us that could last for decades. They got us to sing their jingles and say their slogans. These kinds of ads are called brand or image marketing. And it became a lot harder to pull off in the 21st century.

On today's show, we look back at the history of advertising, and two pretty unassuming products that totally transformed ads.

This show was hosted by Sarah Gonzalez and Kenny Malone. It was produced by James Sneed, and engineered by James Willets. It was fact checked by Sierra Juarez, and edited by Molly Messick. Alex Goldmark is Planet Money's executive producer.

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Economics Job Market Rumors is a website that's half a job information Wiki, where people post about what's going on inside economics departments, and half a discussion forum, where anyone with an internet connection can ask the economics hive mind whatever they want. All anonymously.

People can talk about finding work, share rumors, and just blow off steam. And that steam can get scaldingly hot. The forum has become notorious for racist and sexist posts, often attacking specific women and people from marginalized backgrounds.

Last year, economist Florian Ederer and engineer Kyle Jensen discovered a flaw in the way the site gave anonymity to its users. The flaw made it possible to identify which universities and institutions were the sources of many of the toxic posts on the site. And helped answer a longstanding question that's dogged the economics profession: was the toxicity on EJMR the work of a bunch of fringey internet trolls, or was it a symptom of a much deeper problem within economics itself?

This episode was hosted by Mary Childs and Alexi Horowitz-Ghazi. It was produced by Willa Rubin with help from James Sneed and Sam Yellowhorse Kesler. It was edited by Keith Romer and engineered by Josh Newell. Fact-checking by Sierra Juarez. Alex Goldmark is Planet Money's executive producer.

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The research keeps coming in on remote work. New evidence suggests working from home, at least full-time, may not be as productive as we once thought. Economist Jose Maria Barrero and his co-authors have reviewed this and other studies for a recent paper. In this episode, we hear about the challenges that come with working fully remote and some best practices for hybrid work.

This episode was first published as a bonus episode for our Planet Money+ listeners. Today, we're making it available for everyone!

To hear more episodes like this, and to hear Planet Money and The Indicator without sponsor messages, support the show by signing up for Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.

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*Note: This episode originally ran in 2020*

'Tis the season for Americans to head out in droves and bring home a freshly-cut Christmas tree. But decorative evergreens don't just magically show up on corner lots, waiting to find a home in your living room. There are a bunch of fascinating steps that determine exactly how many Christmas trees get sold, and how expensive they are.

Today on the show, we visit the world's largest auction of Christmas trees — and then see how much green New Yorkers are willing to throw down for some greenery. It's a story where snow-dusted Yuletide dreams meet the hard reality of supply and demand. We've got market theory, a thousand dollars in cash, and a "decent sized truck"... anything could happen.

This episode was produced by James Sneed. It was edited by Bryant Urstadt. It was engineered by Gilly Moon. Alex Goldmark is Planet Money's executive producer.

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Today on the show, hosts from Planet Money and The Indicator debate the economic indicators of this year and next year.

First up, we try to identify the figure that best captured the essence of 2023. The contenders: the possible soft landing, consumer sentiment, and the housing market.

And looking ahead to 2024, what will the economic indicator of next year be? Interest rates, Bidenomics, or junk fees?

Listen to our hosts make their case, and then tell us who won by submitting your vote via Planet Money's Instagram or email us with "Family Feud" in the subject line. Voting ends on December 31st.

This episode was hosted by Jeff Guo, Kenny Malone and Wailin Wong. It was produced by Julia Ritchey and Willa Rubin with engineering help from Valentina Rodriguez Sanchez. It was fact-checked by Sierra Juarez. Kate Concannon edits The Indicator.

Help support Planet Money and get bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.

Music: Universal Music Production, "Terry And Mildred," "Decked Out For The Holidays." Audio Network - "Counting Down Seconds," "Tijuana Choo Choo."

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It's that time of year again! Our annual year-end tradition of checking in on the stories we've reported and the people we met along the way.

We'll hear from a Hollywood strike captain who tried to pull off one last job, an update from the data detective trying to uncover the truth in academic research, and tribute to a very special member of the Planet Money family.

Check out the original stories:
Vacation, and why the U.S. takes so little of it
The secret entrance that sidesteps Hollywood picket lines
Did two honesty researchers fabricate their data?
Planet Money Records Vol. 1: Earnest Jackson, Planet Money Records Vol. 2: The Negotiation & Planet Money Records Vol. 3: Making a Hit

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There's this fundamental question in economics that has proven really hard to answer: What's a good way to help people out of poverty? The old-school way was to fund programs that would support very particular things, like buying cows for a village, giving people business training, or building schools.

But over the past few decades, there has been a new idea: Could you help people who don't have money by ... just giving them money? We covered this question in a segment of This American Life that originally ran in 2013. Economists who studied the question found that giving people cash had positive effects on recipients' economic and psychological well-being. Maybe they bought a cow that could earn them money each week. Maybe they could replace their grass roofs with metal roofs that didn't need fixing every so often.

The success of just giving people in poverty cash has spawned a whole set of new questions that economists are now trying to answer. Like, if we do just give money, what's the best way to do that? Do you just give it all at once? Or do you dole it out over time? And it turns out... a huge new study on giving cash was just released and it's got a lot of answers.

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Our friends at NPR's news quiz Wait Wait...Don't Tell Me! recently had a very Planet Money guest on their show: Treasury Secretary Janet Yellen. They asked her about smoking pot, her extremely high scores in Candy Crush, and when to expect the Harriet Tubman $20 bill.

Today, we're sharing an excerpt of that episode with you, along with some exclusive questions just for Planet Money listeners.

You can listen to the full show and subscribe to Wait Wait...Don't Tell Me! wherever you find your podcasts.

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It's Groundhog Day, and the eyes of the nation have turned to a small town in western Pennsylvania. And, just like last year, all anyone can talk about is Punxsutawney Phil! It is impossible to find a news story that is not about one furry prognosticator.

Well, almost impossible...

Once again, our Planet Money hosts find themselves trapped in the endless Groundhog Day news cycle, and their only way out is to discover an economics story from Groundhog Day itself interesting enough to appease the capricious Groundhog Gods!

So rise and shine campers (and don't forget your booties) as hosts Kenny Malone and Amanda Aronczyk scour the news of February 2nds past, to try to find the perfect story.

This episode was hosted by Kenny Malone and Amanda Aronczyk. It was produced by Sam Yellowhorse Kesler. It was edited by Keith Romer, and engineered by Valentina Rodríguez Sánchez. It was fact-checked by James Sneed. Our executive producer is Alex Goldmark.

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There are tons of markets that don't exist because people just don't want to allow a market – for whatever reason, people feel icky about putting a price on something. For example: Surrogacy is a legal industry in parts of the United States, but not in much of the rest of the world. Assisted end-of-life is a legal medical transaction in some states, but is illegal in others.

When we have those knee-jerk reactions and our gut repels us from considering something apparently icky, economics asks us to look a little more closely.

Today on the show, we have three recommendations of things that may feel kinda wrong but economics suggests may actually be the better way. First: Could the matching process of organ donation be more efficient if people could buy and sell organs? Then: Should women seek revenge more often in the workplace? And finally, what if insider trading is actually useful?

This episode was hosted by Mary Childs and Greg Rosalsky. It was produced by Willa Rubin and edited by Jess Jiang. It was engineered by Cena Loffredo. Fact-checking by Sierra Juarez. Alex Goldmark is Planet Money's executive producer.

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Keith King was upset when his marriage ended. His wife had cheated, and his family broke apart. And that's when he learned about a very old type of lawsuit, called a heart balm tort. A lawsuit that would let him sue the man his now ex-wife had gotten involved with during their marriage.

On this episode, where heart balm torts came from, what relationships looked like back then, and why these lawsuits still exist today (in some states, anyway.) And also, what happened when Keith King used a heart balm tort to try to deal with the most significant economic entanglement of his life: his marriage.

This episode was hosted by Erika Beras and Sarah Gonzalez. It was produced by Emma Peaslee and edited by Molly Messick. It was fact-checked by Sierra Juarez and engineered by Gilly Moon. Alex Goldmark is Planet Money's executive producer.

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The Genco Picardy is not an American ship. It doesn't pay U.S. taxes, none of its crew are U.S. nationals, and when it sailed through the Red Sea last month, it wasn't carrying cargo to or from an American port.

But when the Houthis, a tribal militant group from Yemen, attacked the ship, the crew called the U.S. Navy. That same day, the Navy fired missiles at Houthi sites.

On today's show: How did protecting the safe passage of other countries' ships in the Red Sea become a job for the U.S. military? It goes back to an idea called Freedom of the Seas, an idea that started out as an abstract pipe dream when it was coined in the early 1600s – but has become a pillar of the global economy.

This episode was hosted by Alex Mayyasi and Nick Fountain. It was produced by Sam Yellowhorse Kesler, edited by Molly Messick, fact-checked by Sierra Juarez, and engineered by Valentina Rodríguez Sánchez, with help from Maggie Luthar. Alex Goldmark is Planet Money's executive producer.

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The Department of Defense's proposed budget for 2024 is $842 billion. That is about 3.5% of the U.S.'s GDP. The military buys everything from pens and paper clips to fighter jets and submarines. But the market for military equipment is very different from the commercial market.

On today's episode, we're bringing you two stories from The Indicator's series on defense spending that explore that market. As the U.S. continues to send weapons to Ukraine and Israel, we first look at why defense costs are getting so high. Then, we dive into whether bare-bones manufacturing styles are leaving the U.S. military in a bind.

The original Indicator episodes were produced by Cooper Katz McKim with engineering from Maggie Luthar and James Willetts. It was fact-checked by Sierra Juarez and Angel Carreras. They were edited by Kate Concannon and Paddy Hirsch. Alex Goldmark is Planet Money's executive producer.

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Dynamic pricing is an increasingly common phenomenon: You can see it when Uber prices surge during rainy weather, or when you're booking a flight at the last minute or buying tickets to your favorite superstar's concert. On an earnings call last week, Wendy's ignited a minor controversy by suggesting it would introduce dynamic pricing in its restaurants, but the company quickly clarified that it wasn't planning on using it for "surge pricing."

One place you hardly ever see dynamic pricing? American supermarkets.

Why is that? Why shouldn't the prices for meat or bread or produce go down as they get older? Why does all the milk in the store cost the same, even when the "sell by" dates are weeks apart? Wouldn't a little more flexibility around prices be better for customers and help reduce waste?

Professors Robert Evan Sanders and Ioannis (Yannis) Stamatopoulus had similar questions. So they set out to discover what was keeping supermarkets from employing a more dynamic approach, and what might convince them it was time for a change ... in pricing.

This episode was hosted by Amanda Aronczyk and Nick Fountain. It was produced by Willa Rubin and edited by Keith Romer. It was engineered by Valentina Rodríguez Sánchez and fact-checked by Sierra Juarez.

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There's been a lot of disagreement in Congress and in the country about whether the U.S. should continue to financially support the wars in Ukraine and Gaza.

Some taxpayers don't think the U.S. should give Ukraine any money to fight off Russia's invasion. And some taxpayers have concerns about how they might be funding weapons that have been used to kill civilians in Gaza. And there are questions about how much individual taxpayers contribute to war efforts, generally.

So in this episode, we attempt to do the math: The average taxpayers' contribution to Israel and Ukraine. It's not so simple. But in attempting to do this math, we get this window into the role of our tax dollars on foreign assistance, and how the U.S. sells weapons to other countries.

For links to some of the reports we looked at to report this episode, check out the episode page on NPR.org.

This episode was hosted by Sarah Gonzalez and Alexi Horowitz-Ghazi. It was produced by Sam Yellowhorse Kesler and edited by Jess Jiang. It was fact-checked by Sierra Juarez and engineered by Robert Rodriguez. Alex Goldmark is our executive producer.

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In 2019, Mike Ketchmark got a call. Mike is a lawyer in Kansas City, Missouri, and his friend, Brandon Boulware, another lawyer, was calling about a case he wanted Mike to get involved with. Mike was an unusual choice - he's a personal injury lawyer, and this was going to be an antitrust case.

But Brandon knew Mike was great in front of a jury. And that he'd won huge settlements for his clients in the past.

So the lawyer friend drops by Mike's office, and pitches him the case. Rhonda and Scott Burnett had just sold their home for $250,000, and out of that amount, they had paid $15,000 in commission (plus a small fee), which was split between two real estate agents - even though they had hired only one. And the commission was high - 6%. Mike's friend said the whole thing seemed... suspicious. Maybe even illegal.

Mike agreed to take the case, a case that would soon become bigger than one about just what had happened to the Burnetts. It would become a fight about the way homes are bought and sold in the U.S. and challenge the way real estate agents have done business for more than 100 years.

This episode was hosted by Amanda Aronczyk and Keith Romer. It was produced by Willa Rubin, edited by Keith Romer, engineered by Valentina Rodríguez Sánchez, and fact-checked by Sierra Juarez. Alex Goldmark is Planet Money's executive producer.

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What's going on with consumers? This is one of the trickiest puzzles of this weird economic moment we're in. We've covered a version of this before under the term "vibecession," but it's safe to say, the struggle is in fact real. It is not just in our heads. Sure, sure, some data is looking great. But not all of it.

What's interesting, is exactly why the bad feels so much worse than the good feels good. Today on the show, we look into a few theories on why feelings are just not matching up with data. We'll break down some numbers and how to think about them. Then we look at grocery prices in particular, and an effort to combat unfair pricing using a mostly forgotten 1930's law. Will it actually help?

Today's episode is adapted from episodes for Planet Money's daily show, The Indicator. Subscribe here.

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For the last year and a half, the story of FTX has focused largely on the crimes and punishment of Sam Bankman-Fried. But in the background, the actual customers he left behind have been caught in a financial feeding frenzy over the remains of the company.

On today's show, we do a deep dive into the anatomy of the FTX bankruptcy. We meet the vulture investors who make markets out of risky debt, and hear how customers fare in the secretive world of bankruptcy claims trading.

This episode was hosted by Alexi Horowitz-Ghazi and Amanda Aronczyk. It was produced by James Sneed and Sam Yellowhorse Kesler. It was edited by Jess Jiang, and fact-checked by Sierra Juarez. It was engineered by Cena Loffredo. Alex Goldmark is Planet Money's executive producer.

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(Note: This episode originally ran in 2023.)

Union membership in the U.S. has been declining for decades. But, in 2022, support for unions among Americans was the highest it's been in decades. This dissonance is due, in part, to the difficulties of one important phase in the life cycle of a union: setting up a union in the first place. One place where that has been particularly clear is at the Volkswagen plant in Chattanooga, Tennessee.

Back in 2008, Volkswagen announced that they would be setting up production in the United States after a 20-year absence. They planned to build a new auto manufacturing plant in Chattanooga.

Volkswagen has plants all over the world, all of which have some kind of worker representation, and the company said that it wanted that for Chattanooga too. So, the United Auto Workers, the union that traditionally represents auto workers, thought they would be able to successfully unionize this plant.

They were wrong.

In this episode, we tell the story of the UAW's 10-year fight to unionize the Chattanooga plant. And, what other unions can learn from how badly that fight went for labor.

This episode was hosted by Amanda Aronczyk and Nick Fountain. It was produced by Willa Rubin. It was engineered by Josephine Nyounai, fact-checked by Sierra Juarez, and edited by Keith Romer. Alex Goldmark is our executive producer.

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In the past few months, the price of gold has gone way up – even hitting a new high last month at just over $2,400 per troy ounce.

Gold has long had a shiny quality to it, literally and in the marketplace. And we wondered, why is that?

Today on the show, we revisit a Planet Money classic episode: Why Gold? Jacob Goldstein and David Kestenbaum will peruse the periodic table of the elements with one goal in mind: to learn which element would really make the best money.

This classic Planet Money episode was part of the Planet Money Buys Gold series, and was hosted by Jacob Goldstein and David Kestenbaum.

This rerun was hosted by Sally Helm, produced by Willa Rubin, edited by Keith Romer, and fact-checked by Sierra Juarez. Alex Goldmark is our executive producer.

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By one estimate, 40 percent of American workers get laid off at least once in their careers. And when that happens, companies will often say, "It's not personal. It has nothing to do with you or your performance. We're just changing priorities, making a strategic shift."

It's like the business version of: "It's not you, it's me." And just like a breakup, it feels terrible.

This happened to a man we're calling V, who was working at the same company as his husband when he got laid off. And for V, the experience felt shocking. It left him and his husband with a lot of unresolved questions.

On today's show, the story of that layoff. And we help that couple get some answers by taking their questions to an HR expert who gives the low-down on lay-offs.

This story is adapted from a 3-part series on layoffs produced by Yowei Shaw for her show, Proxy. The layoff series was edited by John DeLore with research and reporting help from Kim Nederveen Pieterse. You can listen to the full layoff series from Proxy wherever you get your podcasts, and you can support the show and find out more by going to patreon.com/proxypodcast. And you can check out her original song "Gold Star" on Spotify and YouTube.

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On today's episode, we ride through the streets of San Francisco with a long-time junkman, Jon Rolston.

Jon has spent the last two decades clearing out houses and offices of their junk. He's found all sorts of items: a life-time supply of toilet paper, gold rings, $20,000 in cash. Over the years, he's developed a keen eye for what has value and what might sell. He's become a kind of trash savant.

As we ride with Jon, he shows us the whole ecosystem of how our reusable trash gets dealt with — from metals (ferrous and non-ferrous) to tires to cardboard. And we see how our junk can sometimes get a second chance at life.

If you can understand the junk market like Jon, you can understand dozens of trends in our economy.

This episode was hosted by Erika Beras and James Sneed, and produced by James Sneed with help from Emma Peaslee. It was edited by Jess Jiang. Engineering by Josh Newell. It was fact-checked by Sierra Juarez. Alex Goldmark is Planet Money's executive producer.

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We are living in a kind of golden age for online fraudsters. As the number of apps and services for storing and sending money has exploded – so too have the schemes that bad actors have cooked up to steal that money. Every year, we hear more and more stories of financial heartbreak. What you don't often hear about is what happens after the scam?

On today's show, we follow one woman who was scammed out of over $800,000 on her quest to get her money back. That journey takes her from the halls of the FBI to the fraud departments of some of the country's biggest financial institutions. And it offers a window into how the systems that are theoretically designed to help the victims of financial cybercrime actually work in practice.

This episode was hosted by Alexi Horowitz-Ghazi and Jeff Guo. It was produced by Willa Rubin and edited by Keith Romer. It was engineered by Neal Rauch and fact-checked by Sierra Juarez. Alex Goldmark is Planet Money's executive producer.

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There is a constant arms race between law enforcement and criminals, especially when it comes to technology. For years, law enforcement has been frustrated with encrypted messaging apps, like Signal and Telegram. And law enforcement has been even more frustrated by encrypted phones, specifically designed to thwart authorities from snooping.

But in 2018, in a story that seems like it's straight out of a spy novel, the FBI was approached with an offer: Would they like to get into the encrypted cell phone business? What if they could convince criminals to use their phones to plan and document their crimes — all while the FBI was secretly watching? It could be an unprecedented peek into the criminal underground.

To pull off this massive sting operation, the FBI needed to design a cell phone that criminals wanted to use and adopt. Their mission: to make a tech platform for the criminal underworld. And in many ways, the FBI's journey was filled with all the hallmarks of many Silicon Valley start-ups.

On this show, we talk with journalist Joseph Cox, who wrote a new book about the FBI's cell phone business, called Dark Wire. And we hear from the federal prosecutor who became an unlikely tech company founder.

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For thousands of years, getting light was a huge hassle. You had to make candles from scratch. This is not as romantic as it sounds. You had to get a cow, raise the cow, feed the cow, kill the cow, get the fat out of the cow, cook the fat, dip wicks into the fat. All that--for not very much light. Now, if we want to light a whole room, we just flip a switch.

The history of light explains why the world today is the way it is. It explains why we aren't all subsistence farmers, and why we can afford to have artists and massage therapists and plumbers. (And, yes, people who make podcasts about the history of light.) The history of light is the history of economic growth--of things getting faster, cheaper, and more efficient.

On today's show: How we got from dim little candles made out of cow fat, to as much light as we want at the flick of a switch.

Today's show was hosted by Jacob Goldstein and David Kestenbaum. It was originally produced by Caitlin Kenney and Damiano Marchetti. Today's rerun was produced by James Sneed, and edited by Jenny Lawton. It was fact-checked by Sierra Juarez. Engineering by Valentina Rodríguez Sánchez. Alex Goldmark is Planet Money's executive producer.

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There's a behind the scenes industry that helps big brands decide questions like: How big should a bag of chips be? What's the right size for a bottle of shampoo? And yes, also: When should a company do a little shrinkflation?

From Cookie Monster to President Biden, everybody is complaining about shrinkflation these days. But when we asked the packaging and pricing experts, they told us that shrinkflation is just one move in a much larger, much weirder 4-D chess game.

The name of that game is "price pack architecture." This is the idea that you shouldn't just sell your product in one or two sizes. You should sell your product in a whole range of different sizes, at a whole range of different price points. Over the past 15 years, price pack architecture has completely changed how products are marketed and sold in the United States.

Today, we are going on a shopping cart ride-along with one of those price pack architects. She's going to pull back the curtain and show us why some products are getting larger while others are getting smaller, and tell us about the adorable little soda can that started it all.

By the end of the episode, you'll never look at a grocery store the same way again.

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We've lived amongst Elon Musk headlines for so long now that it's easy to forget just how much he sounds like a sci-fi character. He runs a space company and wants to colonize mars. He also runs a company that just implanted a computer chip into a human brain. And he believes there's a pretty high probability everything is a simulation and we are living inside of it.

But the latest Elon Musk headline-grabbing drama is less something out of sci-fi, and more something pulled from HBO's "Succession."

Elon Musk helped take Tesla from the brink of bankruptcy to one of the biggest companies in the world. And his compensation for that was an unprecedentedly large pay package that turned him into the richest person on Earth. But a judge made a decision about that pay package that set off a chain of events resulting in quite possibly the most expensive, highest stakes vote in publicly traded company history.

The ensuing battle over Musk's compensation is not just another wild Elon tale. It's a lesson in how to motivate the people running the biggest companies that – like it or not – are shaping our world. It's a classic economics problem with a very 2024 twist.

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We wade into the heated debate over immigrants' impact on the labor market. When the number of workers in a city increases, does that take away jobs from the people who already live and work there? Does a surge of immigration hurt their wages?

The debate within the field of economics often centers on Nobel-prize winner David Card's ground-breaking paper, "The Impact of the Mariel Boatlift on the Miami Labor Market." Today on the show: the fight over that paper, and what it tells us about the debate over immigration.

More Listening:
- When The Boats Arrive
- The Men on the Roof

This episode was hosted by Amanda Aronczyk and Jeff Guo. It was produced by Willa Rubin, edited by Annie Brown, and engineered by Valentina Rodríguez Sánchez. Fact-checking by Sierra Juarez. Alex Goldmark is Planet Money's executive producer.

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At the core of most of the electronics we use today are some very tiny, very powerful chips. Semiconductor chips. And they are mighty: they help power our phones, laptops, and cars. They enable advances in healthcare, military systems, transportation, and clean energy. And they're also critical for artificial intelligence, providing the hardware needed to train complex machine learning.

On today's episode, we're bringing you two stories from our daily show The Indicator, diving into the two most important semiconductor chip companies, which have transformed the industry over the past 40 years.

First, we trace NVIDIA's journey from making niche graphics cards for gaming to making the most advanced chips in the world — and briefly becoming the world's biggest company. Next, we see how the Taiwan Semiconductor Manufacturing Company's decision to manufacture chips for its competition instead of itself flipped the entire industry on its head, and moved the vast majority of the world's advanced chip production to Taiwan.

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We often hear that air travel is worse than it's ever been. Gone are the days when airplanes touted piano bars and meat carving stations — or even free meals. Instead we're crammed into tiny seats and fighting for overhead space.

How did we get here? Most of the inconveniences we think about when we fly can be traced back to the period of time just after the federal government deregulated the airlines.

When commercial air travel took off in the 1940s, the government regulated how many national airlines were allowed to exist, where they were allowed to fly, and how much they could charge for tickets. But the Airline Deregulation Act of 1978 swept all these restrictions aside – and stopped providing subsidies for the air carriers. Airlines had to compete on ticket prices. That competition led to a more bare-bones flying experience, but it also made air travel a lot more affordable.

In this episode, we trace the evolution of air travel over the past century to discover whether flying really is worse today — or if it's actually better than ever. We'll board a plane from the "golden age" of air travel, hear the history of one of the original budget airlines and meet feuding airline CEOs. Along the way, we'll see how economic forces have shaped the airline industry into what it is today, and what role we, as consumers, have played.

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Planet Money Summer School is back for eight weeks. Join as we travel back in time to find the origins of our economic way of life. Today we ask surprisingly hard question: What is money? And where did it come from? We travel to a remote island in the Pacific Ocean for the answer. Then we'll visit France in the year 1714, where a man on the lam tries to revolutionize the country's entire monetary system, and comes impressively close to the modern economy we have today, before it all falls apart. Check out our Summer School video cheat sheet on the origins of money at the Planet Money TikTok.

The series is hosted by Robert Smith and produced by Audrey Dilling. Our project manager is Devin Mellor. This episode was edited by Planet Money Executive Producer Alex Goldmark and fact-checked by Sofia Shchukina.

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In 2022, artist Stuart Semple opened up his laptop to find that all his designs had turned black overnight. All the colors, across files on Adobe products like Photoshop and Illustrator, were gone. Who had taken the colors away? The story of what happened begins with one company, Pantone.

Pantone is known for their Color of the Year forecasts, but they actually make the bulk of their money from selling color reference guides. These guides are the standard for how designers pretty much anywhere talk about color.

On today's show, how did Pantone come to control the language of the rainbow? We look back at the history of Pantone, beginning with the man who made Pantone into the industry standard. And, we hear from Stuart, who tried to break the color monopoly.

Share your thoughts — What color should we choose to be Planet Money's color?

This episode was hosted by Sam Yellowhorse Kesler and Jeff Guo, and produced by Willa Rubin with help from James Sneed. It was edited by Jess Jiang and fact-checked by Sierra Juarez. Engineering by Debbie Daughtry with help from Carl Craft. Alex Goldmark is Planet Money's executive producer.

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Maybe you got a boring slip of paper in the mail. Maybe you got a spammy-looking email promising you money. Surprise! You're in a class action. If you've done any commerce in the last decade, there's a good chance that someone somewhere was suing on your behalf and you have real money coming your way... if you know what to do.

Class action settlements are on the rise. And, on today's show, we're helping decipher the class action from the perspective of the average class member. How do class actions work? Why are these notices sometimes undecipherable? And, what do you stand to gain (or lose) by responding?

This episode was hosted by Kenny Malone and Nick Fountain. It was produced by James Sneed with help from Sam Yellowhorse Kesler. It was edited by Jess Jiang and fact-checked by Sierra Juarez. Engineering by Cena Loffredo. Alex Goldmark is Planet Money's executive producer.

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Episodes each Wednesday through labor day. Find all the episodes from this season here. And past seasons here. And follow along on TikTok here for video Summer School.

Trade has come up in all of the episodes of Summer School so far. An early use of money was to make trade easier. Trade was responsible for the birth of companies and the stock market. And trade was the lifeblood of the early United States.

Today's episode covers 250 years of trade history in three chapters. We start with one of the founding texts of economics, Wealth of Nations, in which Adam Smith argues a country's true value is not measured in gold and silver, but by its people's ability to buy things that enhance their standard of living. Then we'll watch American politicians completely ignore that argument in favor of protecting domestic industries – until one congressman makes a passionate case for free trade as the means to world peace. And finally we'll follow the trade debate up to the modern day, where the tides of American politics have turned toward regulation.

This series is hosted by Robert Smith and produced by Audrey Dilling. Our project manager is Devin Mellor. This episode was edited by Planet Money Executive Producer Alex Goldmark and fact-checked by Sofia Shchukina.

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For some sports, picking the winner is simple: It's the athlete who crosses the finish line first, or the side that scores the most goals. But for the new Olympic sport of breaking (if you want to be cool, don't call it breakdancing), the criteria aren't quite that straightforward. How do you judge an event whose core values are dopeness, freshness, and breaking the rules?

That was the challenge for Storm and Renegade, two legendary b-boys who set out to create a fair and objective scoring system for a dance they say is more of an art than a sport. Over the years, their journey to define the soul of breaking led them to meetings with Olympics bigwigs, debates over the science of dopeness, and a battle with a question many sports — from figure skating to gymnastics — have tried to answer: Can art and sport coexist?

This episode was hosted by Jeff Guo and Alexi Horowitz-Ghazi. It was produced by Emma Peaslee and edited by Jenny Lawton. It was fact checked by Sierra Juarez and engineered by Valentina Rodríguez Sánchez with help from James Willets and Cena Loffredo. Alex Goldmark is Planet Money's executive producer.

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You might have seen ads for online banking services that seem to offer a lot of great stuff — accounts you can open in minutes and without a minimum balance or monthly fees. The ads seem to say: "These aren't your parents' boring old banks." But the truth is: Even though they might resemble banks, they aren't.

These "bank-like" companies are a type of "fintech" or financial technology company. And this is a story about the potential risks of putting your money into these apps.

Banks go through a whole regulatory gauntlet in order to exist. But, in the past several years, there has been a rise in fintechs that skirt regulations. And many of these pose a real threat to even the most savvy of depositors.

When a little known tech company filed for bankruptcy a few months ago, thousands of people couldn't access the millions of dollars they saved. On today's show, we meet some of the people affected and learn what the fintech industry reveals about banking regulation.

Today's show was hosted by Erika Beras and Sally Helm. It was produced by Sam Yellowhorse Kesler and Sofia Shchukina with help from James Sneed. It was edited by Jess Jiang and fact-checked by Kevin Volkl. It was engineered by Valentina Rodríguez Sánchez with help from James Willetts. Alex Goldmark is our executive producer.

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Find all the episodes from this season here. And past seasons here. And follow along on TikTok here for video Summer School.

When we last left the United States of America in our economic telling of history, it was the early 1900s and the country's leaders were starting to feel like they had the economic situation all figured out. Flash forward a decade or so, and the financial picture was still looking pretty good as America emerged from the first World War.

But then, everything came crashing down with the stock market collapse of 1929. Businesses closed, banks collapsed, one in four people was unemployed, families couldn't make rent, the economy was broken. And this was happening all over the world. Today we'll look at how leaders around the globe intervened to turn the international economy around, and in the process, how the Great Depression rapidly transformed the relationship between government and business forever.

This series is hosted by Robert Smith and produced by Audrey Dilling. Our project manager is Devin Mellor. This episode was edited by Planet Money Executive Producer Alex Goldmark and fact-checked by Sofia Shchukina.

Help support Planet Money and hear our bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.

Always free at these links: Apple Podcasts, Spotify, the NPR app or anywhere you get podcasts.

Find more Planet Money: Facebook / Instagram / TikTok / Our weekly Newsletter.

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Take the 2024 Planet Money Summer School Quiz here to earn your personalized diploma!

Find all the episodes from this season of Summer School here. And past seasons here. And follow along on TikTok here for video Summer School.

We are assembled here on the lawn of Planet Money University for the greatest graduation in history – because it features the greatest economic minds in history. We'll hear from Adam Smith, Karl Marx, John Maynard Keynes, and some surprising guests as they teach us a little bit more economics, and offer a lot of life advice.

But first, we have to wrap up our (somewhat) complete economic history of the world. We'll catch up on the last fifty years or so of human achievement and ask ourselves, has economics made life better for us all?

This series is hosted by Robert Smith and produced by Audrey Dilling. Our project manager is Devin Mellor. This episode was edited by Planet Money Executive Producer Alex Goldmark and fact-checked by Sofia Shchukina.

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Today we have a guest episode from 99 Percent Invisible.

It is about White Castle, the burger chain. Even if you haven't visited, you have tasted its influence because, as we will learn in this episode, White Castle is really the proto-burger chain.

Our friends at the excellent podcast 99 Percent Invisible bring us the origin story of White Castle and trace its influence on the business of fast food, and on American eating habits. The story is about one man who had an idea for a world where you could get a slider anywhere in the country and get the same tasty, onion-y quality each time. Think of this as a forebear of the modern global economy of sameness.

This episode is hosted by Roman Mars and reported by Mackenzie Martin. It was produced by Jeyca Maldonado-Medina, and edited by Joe Rosenberg. Mix and sound design by Martín Gonzalez. Music by Swan Real with additional music by Jenny Conlee, Nate Query, and John Neufeld. Fact-checking by Graham Hacia. Kathy Tu is 99 Percent Invisible's executive producer. Kurt Kohlstedt is their digital director, and Delaney Hall is their senior editor.

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