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Planet Money · July 8, 2026 · 37m

Our mission: Find the world's best economic ideas (Summer School World Tour)

Robert Smith
SpotifyApple PodcastsShow Notes

Planet Money Summer School embarks on a global tour to explore innovative economic ideas from around the world. The episode visits New Zealand and Australia to examine markets for water (the most essential commodity) and speculators' role in liquidity, then explores how a jazz musician-economist revolutionized inflation fighting by introducing inflation targeting as a psychological tool.

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

Curious

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Water Markets and Multiple Equilibria
New Zealand and Australia have created markets for water rights, revealing how the same commodity can reach different equilibrium prices depending on how the market is structured.
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Inflation Targeting as Economic Psychology
An economist-jazz musician revolutionized how central banks fight inflation by introducing a secret target number to the public, framing inflation control as a psychological anchoring mechanism.
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Highlights

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Speculators' Dual Role in Liquidity
Speculators can either enhance market function by providing liquidity and price discovery, or destabilize markets by exacerbating volatility and creating artificial price swings.
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Editorial

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Summer School Series Concept
Planet Money frames its summer episodes as a semester abroad, combining travel narratives with economic education to make global economics accessible and memorable.
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Misc

✧Jazz musician-economist connection to inflation targeting — unexpected cross-disciplinary influence
✧Water market in New Zealand/Australia described as 'innovative but controversial'
✧Inflation targeting framed as 'economic mind trick' — suggests psychological component to monetary policy
✧Format: travel-based economic education — combines discovery narrative with substantive economic content
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