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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

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.
American Lithium Motherlode Discovery
The episode reports the discovery of a huge lithium deposit in the United States, described as an 'American lithium motherlode.'
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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