Also this week: math vs. Wall Street, beexploitation, and more.
Why a small random sample is often better than a massive non-random sample. Very nice paper that derives a formula quantifying some important statistical intuitions. Deeply insightful, could be used even in intro biostats courses. (ht Roman Doctor)
You probably know about the Simons Foundation, an unusual private foundation that funds basic research in mathematics, physics, and the life sciences. But did you know that its founder, Jim Simons, is an ex-mathematician who became the most successful investor in history? And that he did it by pioneering the application of statistics and computer algorithms to investing? I haven’t read the book from which the linked piece is drawn, but prominent Wall Street quant Emanuel Derman has; here are his comments.
Congratulations to Terry Chapin for winning the Volvo Environment Prize.
Longtime economics blogger David Giles is retiring from blogging.
Teacher Catriona Shear’s excellent geometry brain teasers.
The evolutionary ecology of New York City’s feral
cats sewer alligators scooters. 🙂 (ht a correspondent)