How Japan poses a threat to the global financial system

The bank of japan (boj) failed to deliver a Halloween thriller. Even as central banks elsewhere have raised interest rates in recent years, the boj has stuck with its ultra-loose policy, designed to stimulate growth. Japan’s benchmark interest rate sits at -0.1%, where it has been for seven years. And on October 31st, despite building pressure, the bank decided merely to tweak its cap on ten-year government-bond yields. The 1% ceiling on yields, which the bank makes enormous bond purchases in order to defend, is now a reference rather than a rule. Indeed, yields on the benchmark bond are at 0.95%, their highest for over a decade (see chart).