This is a nice calculation with a fairly simple causal diagram. The basic point is that if you think people are repeatedly hired either for their looks or for being a good worker, then among the pool of people who are repeatedly hired, looks and good work are negatively correlated.
This is a nice calculation with a fairly simple causal diagram. The basic point is that if you think people are repeatedly hired either for their looks or for being a good worker, then among the pool of people who are repeatedly hired, looks and good work are negatively correlated.
That’s called Berkson’s paradox.