Polymarket bots, lithium found: lots!, marathon shoe thoughts
The Indicator from Planet Money
NPR
4.7 • 9.5K Ratings
🗓️ 1 May 2026
⏱️ 9 minutes
🧾️ Download transcript
Summary
On today’s episode: who wins and loses their Polymarket bets, an American lithium motherlode, and the economics of lightweight running shoes.
Related episodes:
The race to produce lithium
Advanced Fairness At The Marathon
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Transcript
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| 0:00.0 | NPR. |
| 0:02.0 | This is the indicator from Planet Money. I'm your host, Waylon Long. |
| 0:15.0 | I'm your other host, Daryan Woods. |
| 0:17.0 | And I guess continuing the hosting boasting, I'm also a host named Adrienne Ma. |
| 0:23.8 | That's right. And it's our sincere pleasure to welcome you all to Indicators of the Week. |
| 0:32.6 | On today's episode, we have... |
| 0:34.5 | Who or what is making money off polymarket? A seismic announcement from the world of geology. |
| 0:41.6 | And the economics of running shoes. Stick around. Just like Jerome Powell said during his last |
| 0:47.4 | press conference as Fedshire, we are not going anywhere. |
| 0:57.8 | It's Indicators of the Week, Adrienne. How about you start? |
| 1:00.8 | My indicator of the week has to do with Polymarket, and who is actually making money on it? |
| 1:06.5 | Not me. |
| 1:08.6 | Not yet. Not with that attitude. |
| 1:11.0 | So you all know Polymarket. It's the prediction market platform that lets people bet on future events and they can win or lose money accordingly. |
| 1:19.7 | Well, researchers recently at the University of Toronto, they did a study where they found the top 1% of successful traders on polymarket |
| 1:27.8 | who were responsible for collecting a certain percentage of the winnings. |
| 1:32.3 | Anyone who want to take a guess of what that is? |
| 1:34.4 | The top 1%. |
| 1:35.5 | 19%. |
| 1:36.5 | I'm going to go a little lower. |
| 1:38.0 | I'll go 60. |
| 1:39.2 | Pretty close to the middle of where you're at. |
... |
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