You may have heard that an economist was taken off an airplane for working on equations that employed Greek letters. It turned out to be an Italian economist working out a differential equation. The Buttonwood column of the Economist provides some advice for those who might not know if they are sitting next to an economist (or who the two people pictured above are.)
For starters, here’s one clue.
He keeps telling you that “there is no such thing” as a “complimentary refreshment service.”
For the rest, check out the Buttonwood column.