The Corporate Knights survey is based on the methodology of the pioneering Beyond Grey Pinstripes survey of the Aspen Institute (which ceased in 2012). The rankings follow three categories: faculty research, course content, and institutional support. Responses are from faculty and administrators, with the student perspective reflected in measures of student-led initiatives (e.g. student groups, consulting clubs, faculty groups, and student committees/task forces). Unlike many other surveys of MBA programs, the Corporate Knights survey does not include alumni salaries in their metrics, on the grounds that rankings could be skewed because students entering the non-profit sector typically earn less after graduating.