http://www.hm-treasury.gov.uk/media/F2F/24...4_50mbas_50.pdf

Actually it's this
Harvard Business School (USA)
Columbia Business School (USA)
University of Pennsylvania: Wharton (USA)
IMD (SWI)
University of Chicago (USA)
Dartmouth College: Tuck (USA)
Stanford University (USA)
Insead (FR/Sing)
University of Oxford: Said (UK)
MIT: Sloan (USA)
Ashridge (UK)
North Western: Kellogg (USA)
London Business School (UK)
New York University: Stern (US)
University of Strathclyde (UK)
IESE Business School (SP)
Yale School of Management (USA)
Warwick Business School (UK)
City University: Cass (UK)
Rotterdam School of Management (Neth)
UC Berkeley: Haas (USA)
University of Cambridge: Judge (UK)
Georgetown University: McDonough (USA)
Instituto de Empresa (SP)
Cornell University: Johnson (USA)
University of Michigan (USA)
Duke University: Fuqua (USA)
University of Virginia: Darden (USA)
Carnegie Mellon University (USA)
SDA Bocconi (IT)
Emory University: Goizueta (USA)
UCLA: Anderson (USA)
Manchester Business School (UK)
Cranfield School of Management (UK)
University of Toronto: Rotman (CAN)
University College Dublin: Smurfit (IRE)
University of Southern California: Marshall (USA)
University of Rochester: Simon (USA)
Vanderbilt University: Owen (USA)
Rice University: Jones (USA)
University of North Carolina: Kenan-Flagler (USA)
Babson College: Olin (USA)
Melbourne Business School (AUS)
Ceibs (CHN)
Australian Graduate School of Management (AUS)
Universiteit Nyenrode (NTH)
University of Western Ontario: Ivey (CAN/CHN)
Boston University School of Management (USA)
University of Maryland: Smith (USA)
Bradford School of Management/Nimbas (UK/NTH/GER)
It looks like only most of the high ranking universities are in the list.