The US dollar is used as official currency in several countries besides the United States. Ecuador and Zimbabwe both switched to the US dollar after financial crises made their local currencies ...

Facing 54% tariffs on exports to the U.S., the world's No. 2 economy China vowed countermeasures, as did the European Union, as Washington's allies and rivals alike criticised moves they fear will ...

Trump’s plan sets a 10% baseline tariff across the board. But the president’s list makes clear that many countries will face significantly higher rates.