Over the past few decades, work experience has increasingly been a factor in MBA admissions, with many business schools now expecting applicants to have a minimum of five years before applying. In the 1960s and 1970s, most students pursued their MBA immediately after their undergraduate program. Ten years ago, the average age of a first-year MBA was 25. Today it is 28. While this has enhanced the profile of many business school classes [in terms of higher salaries and positions], the net impact on students has not been adequately determined.

Copyright 2009 BusinessWeek