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.

IQ and technical skills are important, but emotional intelligence is the sine qua non of leadership. by Daniel Goleman Every businessperson knows a story about a highly intelligent, highly skilled ...