"...we tried to analyze whether having an MBA influences overall CEO performance. In a large-scale study of CEO performance since they took office, we found that other things equal, MBA CEOs had a slight performance edge over their non-MBA peers. In our analysis and ranking of the performance of 2,000 CEOs around the globe, CEOs who had an MBA on average ranked 40 places higher than CEOs who didn't have an MBA (a statistically significant effect)."
Interestingly they also found some evidence that suggests a slight decline in the value of a MBA:
"One hypothesis is that having an MBA might have given an edge to CEOs getting them when it was less of a commodity, and when business education was more of a generalist, "art rather than science" course of study."
I would have to say at SBU, we still have more of a generalist program. Indeed, it was made even more so this year.