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.

With eight years of experience as a financial journalist and editor and a degree in economics, Elizabeth Aldrich has worked on thousands of articles within the realm of banking, economics, credit ...

The mission of Firehouse is to educate and inspire firefighters so that they can protect their communities and keep themselves safe. By providing news, lessons learned, tactical changes and focusing ...