China has a powerful financial-market arsenal for its trade tussle with America, including a hoard of Treasuries and its currency. But using those weapons is not without cost.

Oil pushed higher despite the U.S. imposition of higher tariffs on Chinese goods, as rising tensions in Iran and elsewhere kept the supply outlook tight.

Amazon.com failed to dodge a lawsuit that accused it of trying to trick shoppers into thinking it was an authorized reseller of Williams-Sonoma products.

America’s merchandise trade deficit widened in March for the first time in three months as an increase in imports exceeded the rise in exports.