If you follow financial news, interest rates come up constantly. The Fed hints at a hike and stocks drop. It hints at a cut and crypto rallies. And somehow, when rates go up , bond prices go down . That seems backwards at first. Shouldn't higher rates mean you earn more? And why would a central bank raise rates when prices are already too high? Here's how it all connects. What Is an Interest Rate? An interest rate is the price of borrowing money. If you borrow $1,000 from a friend and agree to pay back $1,050 in a year, the principal is $1,000 and the interest is $50. That's a 5% annual rate. A bank loan works the same way. Interest Rate vs. the Fed Funds Rate The rate you hear about in the news is different. In the U.S., the Federal Reserve (the Fed) sets a target for the federal funds rate . Other countries have their own central banks, like the Bank of Korea or the European Central Bank. This policy rate influences what banks charge each other, and that f...
A weak Japanese yen can make a trip to Japan feel like it came with a discount code. A ¥10,000 dinner costs about $91 at ¥110 per dollar, or $62.50 at ¥160 per dollar. Same sushi. Maybe one more plate. So why is the Japanese yen weak? One major reason is the gap between U.S. and Japanese interest rates. When U.S. investments pay more, investors have a reason to sell yen and buy dollars. For travelers, that can mean cheaper sushi. For Japanese households, a weaker yen can make imported fuel and food more expensive. And on July 31, 2026, U.S. Eastern time, Japan bought yen in coordination with the U.S. Treasury. Why would Washington get involved in the price of someone else’s currency? The answer starts with interest rates and ends up in the U.S. bond market. Japan’s Ministry of Finance Why higher U.S. interest rates can weaken the yen An interest rate is the price of borrowing money. If you lend a friend $1,000 and they pay you back $1,010 a year later, you’ve earn...