the "bloomberg businessweek" rankings, which are based on three sources of data (a student survey, a survey of corporate recruiters, and an intellectual capital rating), are published in mid-october of even numbered years. the 2006 student survey of 45 online questions of students' ratings of their programs was distributed to 16,595 students three weeks before graduation; there were 9,290 responses. the recruiter survey determines how many mbas a recruiter's company hired in the previous two years and which schools it actively recruits from. 223 respondents participated out of 426 solicited. the intellectual capital is determined based on a formula incorporating academic publications in journals, books written, and faculty size.