The intellectual capital of an institute would mean the experience of the faculty, the number of books and library budget allocation of the institute.
The number of management-related books in the library, access to published journals or online journals, etc, will give you a fair idea of this.
The experience of the faculty of the institute is an indication of the learning imparted at the institute.
Keep in mind factors like the total number of permanent faculty and whether there is a fair mix of relevant industry and teaching experience