Often, the companies integrate results into their operations, says John Mooney, the school's associate dean for academic programs.

WSJ: Executive MBA Programs - Are They Worth It? - Wall St. Journal

Roll-ups companies that consolidate fragmented service industries by acquiring hundreds of little operators have traditionally done wonderfully in early years and then come crashing down, the result of overpaying for acquisitions and often a failure to actually integrate all the little companies into one efficient operation.

FORBES: Connect

The reality is that many businesses are quick to recognize great ideas, but they often have no plan for how to successfully integrate them into their business model.

FORBES: 15 Ways To Transform Useless Ideas Into Innovation

Immigrants from Pakistan to New Jersey often join an existing community that helps them to integrate, she explains, whereas "refugees, especially refugees from war-torn areas like Somalia, have a very different kind of assimilation process".

BBC: American jihad: Facing up to homegrown militancy

In recent years, often after much hesitation, Japanese companies have begun to integrate their strategies and operations regionally, and have begun to reap strong profits as a result.

FORBES: Foreign Securities Firms Expanding