The vast Global Digital Trade Expo in Hangzhou stood as a rebuke to U.S. efforts to hem in China’s technology. But the real competition is internal, and profits are hard to find. By Andrew Higgins ...

A century and a half before Apple marketed iPads to schools, in 1857, a Greek-born Harvard professor, Evangelinus Apostolides Sophocles, held a bonfire of newly introduced “blue books”, bound exam ...