Christina Majaski writes and edits finance, credit cards, and travel content. She has 14+ years of experience with print and digital publications. Robert Kelly is managing director of XTS Energy LLC, ...

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.

Warren Buffett became world-famous by buying undervalued companies and holding them long-term. Carl Icahn's reputation stems from improving company value through active management intervention. John ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Chip Stapleton is a Series 7 and Series 66 license holder, CFA Level 1 exam ...