Scott Jaschick reviews a currently popular blog post that compares the behavior of newly minted PhDs to those who seek to join drug gangs.
Then [the blogger] turns to academe and finds very similar conditions. "The academic job market is structured in many respects like a drug gang, with an expanding mass of outsiders and a shrinking core of insiders. Even if the probability that you might get shot in academia is relatively small (unless you mark student papers very harshly), one can observe similar dynamics," he writes. "Academia is only a somewhat extreme example of this trend, but it affects labor markets virtually everywhere.... Academic systems more or less everywhere rely at least to some extent on the existence of a supply of 'outsiders' ready to forgo wages and employment security in exchange for the prospect of uncertain security, prestige, freedom and reasonably high salaries that tenured positions entail."