Which institutions are included in the top 15 according to the International Business MBA Rating?

The top 15 business schools across the globe which are known to offer the best MBA programs are: London Business School, University of Pennsylvania, Harvard Business School, Insead, Stanford University, Hong Kong UST Business School, Columbia Business School, IE Business School, MIT Sloan School of Business, Indian Institute of Management, University of Chicago, and New York University Stern, Yale School of Management, Ceibs, and Dartmouth College. The above mentioned rankings change from time to time.