Twenty years after the introduction of the theory, we revisit what it does—and doesn’t—explain. by Clayton M. Christensen, Michael E. Raynor and Rory McDonald Please enjoy this HBR Classic. Clayton M.

Editor's Note: APYs listed in this article are up-to-date as of the time of publication but may fluctuate as the Fed rate changes. CNBC will update as changes are made public. A high-yield savings ...

Do you race to the pantry when you feel down or otherwise upset? You’re not alone. It’s common for people to turn to food for comfort as a way to cope with big, difficult feelings. When you eat in ...