Just five universities have produced one-eighth of the U.S. professoriate, and 80 percent of tenure-track professors at doctoral institutions earned their Ph.D.s from 20 percent of the nation’s universities.
Just five universities have produced one-eighth of the U.S. professoriate, and 80 percent of tenure-track professors at doctoral institutions earned their Ph.D.s from 20 percent of the nation’s universities.