The Bank of Japan has done what many thought impossible: it has raised interest rates to levels not seen since the early 1990s. This move, which pushes the benchmark rate to 0.5%, marks a stark departure from decades of ultra-loose monetary policy. For global markets, the tremors are immediate. For the UK, the message is clear: the era of cheap money is well and truly over.
Let us not mince words. Japan’s decision is a seismic shift. The yen, long the carry trade’s favourite whipping boy, has surged. Capital is flowing back to Tokyo with a vengeance. This is capital flight in reverse, and it is putting pressure on bond markets from London to New York. The UK, with its own inflation problem and a fiscal position that would make a Greek finance minister wince, cannot afford to be complacent.
The immediate impact on UK gilt yields is telling. The 10-year yield has crept up, a sign that investors are demanding a higher premium for holding British debt. This is not panic, but it is a warning. The Bank of England, which has spent the past year fighting inflation with its own rate hikes, now faces a new complication. Japan’s move makes the pound relatively less attractive, and that could feed into import prices, fuelling the very inflation we are trying to tame.
But let us look at the silver lining. A stronger yen means cheaper imports from Japan for UK businesses. That may offer some relief to supply chains that have been under strain. However, this is cold comfort when the broader picture suggests a global tightening cycle that is far from over.
The market volatility we are witnessing is not noise. It is the sound of the world’s third-largest economy rediscovering the virtues of normal monetary policy. For the UK, the lesson is simple: fiscal discipline is not optional. The Chancellor’s Autumn Statement must convince markets that the UK is not the next Japan of the 1990s, stuck in a deflationary spiral, but rather a responsible steward of the public purse.
In the short term, expect more turbulence. The yen carry trade, which has been a source of cheap funding for global speculators, is unwinding. That will hit emerging markets hardest, but London’s hedge funds will not escape unscathed. The Bank of England must stand ready to intervene if sterling falls too far, but its primary weapon, interest rates, is already pointed at inflation.
My view is this: Japan’s rate rise is a necessary correction, but it exposes the fragility of the global financial system. The UK, with its structural deficit and reliance on foreign capital, must act fast to reassure markets. Otherwise, the gilt market could become the next battleground in this great unwinding.
For now, brace for a bumpy ride. The era of easy money has ended, and the hangover is just beginning.
