A growing proportion of the nation's professors are at the same point in their career: still working, but with the end of their careers in sight. Their tendency to remain on the job as long as their work is enjoyable--or, during economic downturns, long enough to make sure they have enough money to live on in retirement--has led the professoriate…

One challenge facing colleges and universities today is that an entire generation of scholars will be retiring in critical numbers over the next several years. A national survey conducted three years ago by the University of California at Los Angeles revealed that nearly one-third of the nation's full time professors were age 55 or older. Now,…