<p>Not sure if Amherst’s fraternity decision has that much of an actual effect (compared to the 1984 decision of pushing the fraternities off-campus), as only about 10% of men are in the unrecognized off-campus fraternities (there are no sororities). Barnard has no sororities, although Columbia has fraternities and sororities that appear to be a minor presence (10% of students); Barnard students can join the Columbia sororities.</p>