Although the headline ranking figures show changes in the data year to year, the pattern of clustering among the schools is equally significant. Some 340 points separate the top school, Duke Corporate Education, from the school ranked number 65. The top eight business schools, from Duke CE to the Wharton School of the University of Pennsylvania, form the top group of custom providers. The second group is jointly headed by Iese Business School and Thunderbird School of Global Management and the third by the University of Toronto's Rotman School of Management. The top and bottom schools in the second group are separated by 59 points; in the third group there is a 144 point gap between top and bottom.
1. These data are for information only and are not used in the rankings.
2. The level of interaction with the business school; the extent to which purchasers' ideas were integrated into the programme; and the effectiveness of the business school in integrating its latest research into the programme.
3. The flexibility of the programme and the willingness of business schools to complement their own faculty with specialists and practitioners.
4. Contemporary and appropriate teaching materials and a suitable mix of academic rigour and practical relevance.
5. The quality of the teaching and the extent to which teaching staff worked together to present a coherent programme.
6. The relevance of new skills to the workplace, the ease with which they were implemented and the extent to which the course encouraged new ways of thinking.
7. The level of follow-up offered after participants returned to their workplace.
8. The degree to which academic and business expectations were met and the feedback from individual participants.
9. The quality of food and accommodation.
10. The quality of the teaching accommodation, IT and library facilities.
11. Purchaser's rating, in terms of value for money, of the course design, teaching materials and food and accommodation.
12. Purchasers were asked to rate the likelihood that they would use the same business school again and if they would use that business school to do the same programme again.
13. Amalgamates the percentage of clients headquartered outside the business school's base country and its region (e.g. North America, Europe, South America).
14. Custom programmes with participants from more than one country.
15. Custom programmes that have been taught in more than one country.
16. Custom programmes developed or taught in conjunction with other business schools.
17. The mix of faculty by nationality and gender.