Bloomberg Jawbone Inc. isn’t backing down in its legal fight with Fitbit Inc., asserting in a court filing that its rival is under investigation by a criminal grand jury for theft of trade secrets. The two pioneers in wearable activity trackers have been embroiled in legal battles since May 2015, when Jawbone accused Fitbit in a lawsuit of plundering …

  Bloomberg The US trade deficit narrowed in December for the first time in three months, a modest improvement that nonetheless left the gap for all of last year at its widest since 2012. The monthly shortfall shrank 3.2 percent to $44.3 billion, Commerce Department figures showed on Tuesday. The median forecast in a Bloomberg survey of economists called for …

  Bloomberg As Washington mulls a tax on imports, an auto industry study suggests the policy would deliver the sharpest blow to Tata Motors Ltd.’s Jaguar Land Rover while giving a leg up to Tesla Inc. and Ford Motor Co. In what it calls a “thought exercise,” researcher Baum & Associates LLC estimates most automakers would need to raise vehicle …