Bryan Caplan explains in an Atlantic essay why he’s no fan of the idea of sending as many young adults as possible to college.
Thanks to tenure, I have a dream job for life. Personally, I have no reason to lash out at our system of higher education. Yet a lifetime of experience, plus a quarter century of reading and reflection, has convinced me that it is a big waste of time and money. When politicians vow to send more Americans to college, I can’t help gasping, “Why? You want us to waste even more?”
How, you may ask, can anyone call higher education wasteful in an age when its financial payoff is greater than ever? The earnings premium for college graduates has rocketed to 73 percent—that is, those with a bachelor’s degree earn, on average, 73 percent more than those who have only a high-school diploma, up from about 50 percent in the late 1970s. The key issue, however, isn’t whether college pays, but why. The simple, popular answer is that schools teach students useful job skills. But this dodges puzzling questions. …
… Suppose your law firm wants a summer associate. A law student with a doctorate in philosophy from Stanford applies. What do you infer? The applicant is probably brilliant, diligent, and willing to tolerate serious boredom. If you’re looking for that kind of worker—and what employer isn’t?—you’ll make an offer, knowing full well that nothing the philosopher learned at Stanford will be relevant to this job.
The labor market doesn’t pay you for the useless subjects you master; it pays you for the preexisting traits you signal by mastering them. This is not a fringe idea. Michael Spence, Kenneth Arrow, and Joseph Stiglitz—all Nobel laureates in economics—made seminal contributions to the theory of educational signaling. Every college student who does the least work required to get good grades silently endorses the theory. But signaling plays almost no role in public discourse or policy making. As a society, we continue to push ever larger numbers of students into ever higher levels of education. The main effect is not better jobs or greater skill levels, but a credentialist arms race.
