The Bank of Japan has done it again. In a move that has sent shockwaves through global financial markets, the BoJ today raised its benchmark interest rate to levels not seen since the early 1990s. For a nation long synonymous with zero interest rates and deflationary stagnation, this is nothing short of a historic pivot. The yen surged, bond yields spiked, and equity markets from Tokyo to London took a hit. The question now is whether this is the beginning of a new era for the world's third-largest economy or a policy misstep that could unravel the fragile global recovery.
Let me put this in perspective. For three decades, Japan has been the exception to every rule of monetary policy. While the West raised rates to fight inflation, Japan kept its powder dry, fighting a losing battle against deflation. But the worm has turned. With inflation finally breaching the BoJ's 2% target and staying there, Governor Kazuo Ueda has decided to act. The rate hike, the largest since 1991, is a clear signal that the era of 'Japanification' may be over.
The immediate fallout was predictable. The yen, which had been languishing at multi-decade lows against the dollar, shot up. Japanese government bond yields followed suit, with the 10-year yield hitting levels not seen since the bubble economy. But the real story is the contagion. Global bond markets sold off in sympathy. Investors who had been borrowing cheap yen to fund carry trades into higher-yielding assets were caught with their trousers down. The Nikkei 225 fell sharply, and European and US futures pointed lower.
Why does this matter to a reader in London or New York? Because Japan's low rates have been the linchpin of global carry trades for years. With the BoJ now tightening, the cheap yen is no longer a given. Capital flight from Tokyo could exacerbate volatility in emerging markets and strain currency pegs. Moreover, Japanese institutional investors, the world's largest cross-border bond buyers, may repatriate funds, putting upward pressure on JGB yields and downward pressure on peripheral debt.
The cynic in me is wary. Japan has tried this before, raising rates prematurely only to reverse course when the economy stumbled. But the circumstances are different now. Inflation is stubbornly above target, wage growth is accelerating, and the labour market is tight. The BoJ has room to manoeuvre, but it must tread carefully. Tightening too fast could sink the economy; tightening too slow could reignite inflation expectations.
What does this mean for the UK? The Bank of England, which has been cautious in its own tightening cycle, may find some solace in a stronger yen, which could reduce imported inflation. But the broader impact on global risk appetite is negative. Investors hate uncertainty, and Japan's sudden shift has injected a dose of it into an already jittery market.
In my 20 years in the City, I've learned that when Japan moves, markets listen. This time, they should be paying very close attention.
