Full episode
423: The Invention of Money

Prologue

Ira Glass speaks with several members of the Planet Money team, who all found themselves—in the course of their reporting—independently asking the same stoner-ish question: What is money? Ira and Planet Money producer Jacob Goldstein discuss a pre-industrial society on the island of Yap that used giant stones as currency. The book that Jacob read about Yap is called The Island of Stone Money. (10 minutes)

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