A good bit:
... it is one of the surreal qualities of professional sports that they are as welcoming and lucrative for those owners who chose to behave like 14-year-olds as they are of those owners who chose to behave like grown-ups.
Jon's paper is about the racial integration of professional baseball and, among other things, estimates the costs (in foregone profits) that owners implicitly paid to keep their teams white. An apparently ungated version of Jon's paper is here. Gladwell uses it to motivate the general idea of owners getting psychic returns from their teams.