The justices on the State Supreme Court heard arguments in a long dispute about whether the Tesla chief executive’s compensation was fair to shareholders.

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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.

Electric models from the luxury car brand have been very successful, but they may struggle once a $7,500 federal tax credit ends next month.