A Canadian business school has finished atop the Aspen Institute’s biennial alternative ranking of the schools. The ranking, which is based on a survey of how full-time M.B.A. programs are dealing with environmental, social, and ethical issues, gave top marks to the Schulich School of Business at Toronto’s York University, which supplanted Stanford University. The survey appears in the 2009-10 edition of “Beyond Grey Pinstripes,” which the institute published today. The Schulich school was recognized for the number of courses available on those issues as well as the number of scholarly articles on them published by its faculty members. The survey also found that business schools are offering more courses, including required courses, about those issues.