The Yen Carry Trade: Why Japan’s Interest Rates Matter to Everyone from BoJ For years, a quiet financial strategy called the yen carry trade helped fuel growth in global markets. Because Japan kept its interest rates below zero, big banks and investment firms could borrow Japanese yen for almost free, convert it into currencies like the U.S. dollar, and invest that money around the world for higher returns. Today, as Japan raises interest rates to tackle rising prices at home, the unwinding of this massive borrowing strategy poses real risks to the broader economy. How Rising Rates Squeeze Borrowers Unlike a traditional fixed-rate home mortgage, yen carry trade loans use variable (floating) interest rates that reset daily or monthly. When Japan’s central bank raises rates, borrowers feel t