The value of the U.S. dollar greatly influences global trade prices and volumes. U.S. monetary policy affects how much prices change when the dollar fluctuates. The strength of the dollar can predict changes in trade volume and inflation worldwide. When the dollar goes up by 1% compared to other currencies, global trade between countries decreases by 0.6-0.8% within a year. The currency used for invoicing imports plays a big role in how much the dollar's value affects trade. These findings support the idea that the U.S. dollar is the most important currency in global trade.