When do creators do their best work?

Douglass North did most of his best work from his 50s on. The Rise of the Western World, Structure and Change in Economic History, etc.

Fogel began his career late and his most famous book, Time on the Cross appeared in 1974, when he was 48. His great work on standard of living The Escape from Hunger and Premature Death is a product of his late 70s.

The less purely mathematical the contributions, the more likely that experience and age are beneficial to serious work.

Would it be fair to mention Frédéric Bastiat? According to my sources, he published all of his economic works between the ages of 44 and 49.

Gary Becker.
His work on the economics of the family was published when he was 50 – and part of his Nobel prize citation. His work on rational addiction came out in his late 50s.
Now 75, he has four or five fascinating papers on the go, including one on demographics and one on terrorism. Perhaps not as influential as his work on human capital, but not bad going. And he still teaches full time.

Laibson began his work on hyperbolic discounting in grad school in 1994. My best guess for his age then was 28.

Even on the strictly math side of things there are exceptions to the usual story of it’s all over now baby blue by the time one hits 30 or so (much less the 40 or 50 being put forward in this thread about economists). The most famous was the late Paul Erdos, who did brilliantly original work into his old age and was one of the most published mathematicians ever. He had so many coauthors that there is even an index of “small world connectedness,” the Erdos number. He was number zero; coauthors are Erdos number one, their coauthors Erdos number 2, and so forth. I have calculated that my number is no greater than 5, but when I told Duncan Watts that, “Mr. Small Worlds Networks,” he was not impressed and said that was true of “everybody.” These are the guys who believe that there no one is more than “six degrees of separation” from anybody else in the world.

Even on the strictly math side of things there are exceptions to the usual story of it’s all over now baby blue by the time one hits 30 or so (much less the 40 or 50 being put forward in this thread about economists). The most famous was the late Paul Erdos, who did brilliantly original work into his old age and was one of the most published mathematicians ever. He had so many coauthors that there is even an index of “small world connectedness,” the Erdos number. He was number zero; coauthors are Erdos number one, their coauthors Erdos number 2, and so forth. I have calculated that my number is no greater than 5, but when I told Duncan Watts that, “Mr. Small Worlds Networks,” he was not impressed and said that was true of “everybody.” These are the guys who believe that there no one is more than “six degrees of separation” from anybody else in the world.

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