The Second Time Around

Retirement used to offer people a chance to relax after years of labor. But the days of playing shuffleboard in Florida are gone. Now, Americans are increasingly looking at retirement as a way to pursue new interests, start a second career, or do work for the greater good.

In the coming decades — as American businesses confront the job gap we've discussed earlier — older employees who embark on new careers will be an increasingly valuable resource for businesses. It will be important to attract experienced workers from other bus.....