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The Indicator from Planet Money · May 1, 2026 · 8m

Polymarket bots, lithium found: lots!, marathon shoe thoughts

A weekly roundup of three fascinating economic numbers: an analysis of who profits from Polymarket bets and the influence of automated bots; the discovery of a massive lithium deposit in the United States that could shift battery supply chains; and the economics of super lightweight running shoes and their impact on marathon performance.

This summary was generated from show notes and public descriptions, not from a full transcript review. Details may contain inaccuracies.

Highlights

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Polymarket Bots and Betting Outcomes
The episode discusses who wins and loses on the prediction market platform Polymarket, highlighting the role of automated trading bots.
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American Lithium Motherlode Discovery
The episode reports the discovery of a huge lithium deposit in the United States, described as an 'American lithium motherlode.'
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Economics of Lightweight Marathon Shoes
The episode examines the economics behind advanced lightweight running shoes and how they have transformed competitive marathon times.
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