In my tribute to Kenneth Arrow, I asserted that he was unique among economists in having a theorem named after him. He may be unique in having an impossibility theorem named after him, and his may be the most profound theorem named after an economist, but my statement was wrong. Alas I was for the first time writing about economic theory without the benefit of Kenneth’s advice. He no doubt would have provided within 60 seconds a list twice as long as the one that follows.
Among the theorems named after economists are: the Coase theorem, the Modigliani-Miller theorem, the Stolper-Samuelson theorem, the Gibbard–Satterthwaite theorem, and the Debreu-Scarf theorem. Kudos to any graduate student who can summarize the content of all 6 of them or remind me of others.