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Concorde's per-flight economics — $100,000 revenue against $200,000 operating cost — and the sunk cost fallacy named after it, read as grief avoidance rather than bad arithmetic

EconomicsSep 9, 2026

The Plane The Fallacy Is Named After

economics sunk-cost-fallacy concorde

The rai stone money of Yap — four-ton limestone discs quarried in Palau, hauled by canoe, and one lost at sea that still counts as wealth by public agreement

EconomicsSep 1, 2026

The Fortune On The Seafloor

economics money yap

Green line icons of a dollar, a clock and a person on a black card, above a boxed takeaway

EconomicsJul 29, 2026

Opportunity Cost

economics decisions time

A glass of water beside a cut diamond, with a desert and an oasis below them

EconomicsJun 27, 2026

Why A Diamond Costs A Fortune And Water Is Free

economics value mental-models

A gas flare burning above an offshore rig, with a dotted map of the Netherlands behind it

EconomicsJun 23, 2026

Dutch Disease

economics growth mental-models

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