Like the rage of Achilles, Donald Trump’s tweets are sudden, explosive and freighted with tragedy. Yesterday brought the most foreboding yet. “After consultation with my Generals and military experts, please be advised that the United States Government will not accept or allow……” And then: nothing. For a full nine minutes, the world was left to ponder what those ominous six …

By any measure, the April 2016 decision by Uber Technologies Inc. to sell its China operations to rival Didi Chuxing was a defeat. The brief but spectacular battle between the two ride-hailing behemoths had cost Uber at least $2 billion and earned it little more than the enmity of the Chinese government. The only silver lining seemed to be that …

Imax China Holding Inc. has a bigger challenge than a Chinese box office in the doldrums. Barring a surprise hit or two, the Hong Kong-listed subsidiary of Imax Corp. needs a strategy overhaul to win fans. The giant-screen operator posted a 6.3 percent drop in first-half revenue to $51.6 million, sending profit down 7.1 percent to $16.5 million. That drove …