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.
Does your favorite coffee mug have a funny pun or cool art? Or maybe an intricate ceramic design? How about stepping things up and having some jewelry with your java? Enter the zarf, a Turkish word ...