China has retaliated against the latest round of U.S. tariffs with higher duties on American exports, putting at stake a whopping $650 billion in trade between the two largest economies in the world.

That's how much new U.S. tariffs could cost Mercedes-Benz this year, according to brokerage Bernstein—14% of expected operating profit. That is before any potential retaliation by U.S. trading ...

Most eyes will be trained on the Rose Garden this afternoon, but how foreign capitals react to U.S. tariffs will reveal the severity of the coming trade war. The European Union can ratchet up ...