The campaign to fight U.S. inflation by upping interest rates has been going on for a year and a half — and its impacts are being felt around the world. On July 26, 2023, the Federal Reserve announced another quarter-point hike. That means U.S. rates have now gone up 5.25 percentage points over the past 18 months. While inflation is now coming down in the U.S., the aggressive monetary policy may…