Why are conservatives such a minority at so many graduate schools? Conservatives like to blame liberal bias. Liberals like other explanations.
One — the most tactful hypothesis — is that conservatives just aren’t interested in academic careers. Another — the most smug hypothesis — is that conservatives are just too close-minded and dimwitted.
Now, fortunately, we have something beyond hypotheses, courtesy of scholars who have been taking a close look at their colleagues. Some even conducted a small sting operation that they believe is the first field experiment on political bias in academia. The perpetrators include Neil Gross, a professor of sociology at the University of British Columbia, whose previous work showed that Democrats outnumber Republicans by about 4 to 1 among professors, by at least 6 to 1 at elite universities, and by still higher ratios in departments of the humanities and social sciences. . . .