The Bank of Japan has finally pulled the trigger. In a move that reverberates from Tokyo to Threadneedle Street, the central bank raised its benchmark interest rate to levels not seen since 1995, effectively slamming the door on decades of ultra-loose monetary policy. My own sources in the Square Mile describe the reaction as ‘jittery’ and ‘on edge’, with the UK Treasury tracking the fallout in real time.
The hike, a quarter-point rise to 1.5%, might seem modest by historical standards. But context is everything. Japan has been the poster child for cheap money since the 1990s, borrowing at near-zero cost to fund gargantuan public works and prop up zombie companies. That era is over. The BoJ Governor, in a carefully worded statement, cited ‘sustained wage growth’ and ‘inflation expectations’ that finally justify a move.
But here’s what the official statement won’t tell you: the yen carry trade is now in serious jeopardy. For years, global investors borrowed yen at negligible rates to buy higher-yielding assets elsewhere. That trade is now unwinding at speed. A source who runs a large hedge fund told me off the record, ‘The margin calls are coming in. People are getting squeezed.’
The London connection is undeniable. The UK Treasury, my sources confirm, has activated its financial stability monitoring protocols. Officials are particularly worried about UK pension funds and insurance companies that loaded up on Japanese government bonds for yield. A letter from the Treasury to the Financial Conduct Authority, obtained by this reporter, asks for ‘urgent analysis’ of the exposure of UK financial institutions to Japanese assets.
Let’s be clear: the era of free money is ending across the developed world. The US Federal Reserve has already raised rates. The European Central Bank is tightening. But Japan’s move is different. It’s a symbol. The last holdout of the cheap money club has finally left the building.
What happens next? My sources suggest the UK bond market is bracing for volatility. The gilt yield curve, already inverted, could twist further. And the pound? It’s vulnerable. If the carry trade collapses, we could see a flight to safety that strengthens the dollar but hurts sterling.
I’ve spent years tracing the shadow of cheap money through the global financial system. It enabled asset bubbles, corporate debt binges, and grotesque inequality. Its demise will be ugly. The Treasury knows it. The Bank of England knows it. But no one is willing to say the quiet part out loud: we are not prepared for the hangover.
A former BoJ official, speaking on condition of anonymity, told me: ‘This is the beginning of a long adjustment. It will be painful. But it is necessary.’ When I pressed him on whether UK institutions are ready, he paused. ‘Nobody is ready for a world without cheap money.’
Neither is the UK Treasury. But they better get ready, because the bill is coming due.
