Students show off the results of their trades. Caitlin Kenney/NPR hide caption

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Why Economists Hate Presents, And How 7th-Graders Solved The Problem
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After The Crisis, An Economist Reconsiders Cappuccino
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What Should The Government Pay For? Autopsies And Lighthouses!
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Scott Fitzpatrick, with stone money. courtesy Scott Fitzpatrick hide caption

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The Island Of Stone Money
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A Chemist Explains Why Gold Beat Out Lithium, Osmium, Einsteinium ...
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We Bought Gold!
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The last bubble: A neighborhood laid out in in the 1970s in Charlotte County, Florida, for a subdivision that never got built. DigitalGlobe hide caption

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Before Toxie Was Toxic
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Caged prisoners below deck on a transport ship bound for Australia. Hulton Archive/Getty Images hide caption

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Pop Quiz: How Do You Stop Sea Captains From Killing Their Passengers?
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Julie Remache and Nathaniel Wuerffel, in front of the trading room. That's the table-tennis trophy in the background. David Kestenbaum/NPR hide caption

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How To Spend $1.25 Trillion
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