Japan just did something it has not done in 31 years

The Bank of Japan has acted. It has raised interest rates. This is the first time the bank has done so in thirty one years. The central bank’s board met in Tokyo on Friday morning and voted to increase its benchmark rate from 1 percent to 1.25 percent, a move designed to curb the rising prices hitting Japanese households. That is a small number. A quarter of a percentage point. Its significance, however, is immense for an economy that has spent a generation defined by the opposite problem. An entire financial model, built over three decades, has been dismantled. The era of ultra cheap money is over. For companies, for investors and for governments around the world, nothing will be quite the same. The global financial system became addicted to Japan’s cheap cash. The supply has just been tightened.

This decision marks a historic turning point. It ends an economic experiment that began before many of today’s currency traders were even born, a period where Japan became a laboratory for radical monetary policy. After its economic bubble imploded three decades ago, the country embarked on a long journey into a world of near zero interest rates. This policy was designed to fight a persistent and damaging fall in prices known as deflation. That fight is now finished. The Bank of Japan has officially declared that inflation, not deflation, is the new enemy. It has been forced to join the global consensus, aligning itself with the Bank of England and the US Federal Reserve, which have both been pushing borrowing costs higher to tame inflation fuelled by volatile energy markets.

Japan could not hold out forever. The country is not immune to global forces. The same high energy prices that have squeezed British consumers have also pushed up inflation across Japan, putting pressure on the central bank to abandon its unique stance. The pledge from the bank’s governor was simple. He promised to counter inflation risks. This single move realigns the world’s fourth largest economy with its international peers and closes one of the most extraordinary chapters in modern economic history. The consequences will be felt far beyond Tokyo. They will be felt in London. They will be felt on Wall Street. A fundamental source of cheap money that has powered global markets for a generation is starting to dry up.

Tokyo could not ignore rising prices

The Bank of Japan acted for one reason. Inflation. For a generation of Japanese consumers and business leaders, rising prices are a completely alien concept, a forgotten problem from a distant past. They grew up in a world where prices did not rise. They fell. This sounds like a good thing. It is not. The long fight against deflation, a persistent and corrosive fall in the general level of prices, has defined the national economy for thirty years. Now that fight is over. A new one has begun.

Deflation is destructive. When people expect things to be cheaper tomorrow, they stop spending today, which forces businesses to cut prices even further in a desperate attempt to attract customers. This seems good for the buyer. It is terrible for the economy. Profits shrink. Companies then cut investment, they freeze wages and eventually they start sacking people, which in turn crushes demand even more, creating a vicious cycle that is extraordinarily difficult to escape. Japan was stuck in this trap for decades, a quagmire of economic stagnation that the rest of the world watched with a mixture of pity and fear, until central bankers in the West were forced to use Japan’s policy book after the 2008 financial crisis. Forcing prices up, even a little, became the primary goal.

The inflation Japan now faces is not the kind the Bank of Japan ever wanted. It is not a sign of a healthy, booming economy with strong wage growth and confident consumers finally spending again. This is imported inflation. It is a problem made overseas. The sources are clear. The cause is the same surge in global energy prices that has sent electricity bills soaring from London to Los Angeles, a shock that ripples through every supply chain and affects the cost of everything. Japan, an island nation that imports almost all its fuel, could not seal itself off from this global price wave. The pressure became too much. The bank had to act.

So the Bank of Japan has been forced to join its peers. It is now part of the pack. The central bankers in Tokyo are now fighting the same fire as their counterparts at the Bank of England in Threadneedle Street and the US Federal Reserve in Washington. They are using the same tool, raising interest rates, to cool an overheating problem. This is a brutal reversal. The policies designed to escape the deflationary trap are useless against an inflationary surge driven by external energy shocks. The world’s most unusual central bank has been forced to become unpleasantly normal. An era has ended. A new one has begun.

An experiment thirty years long has ended

The new rate is 1.25 percent. It is a tiny number with titanic significance. Its importance cannot be understood by looking at the change itself, the meagre quarter of a percentage point rise from the previous one percent. The real meaning lies in the history. It lies in the past thirty years. To grasp why this move matters so much, you must travel back to the moment Japan’s economic bubble burst, an event that defined a generation and reshaped global finance. That moment was around 1992. The country’s post war miracle came to a shuddering, violent stop.

Throughout the 1980s, Japan’s economy had seemed unstoppable, a source of both admiration and anxiety in the West. Its asset prices soared to levels that defied reality. At the peak, the land under the Imperial Palace in Tokyo was supposedly worth more than all the real estate in California. Stocks reached stratospheric heights. Everyone felt rich. Then it was over. The crash was brutal and absolute, wiping trillions of pounds from balance sheets and leaving the country’s financial system in ruins. Banks were left holding mountains of loans that would never be repaid, collateralised against property and stocks that were now worthless. Companies that had borrowed aggressively to expand were crushed by debt. The economy seized up.

This was the start of the ‘lost decades’. It was an economic sickness the modern world had never seen. The problem was not inflation, which central banks knew how to fight. The problem was the opposite. Japan was stalked by deflation, a persistent and corrosive fall in prices. This sounds like a good thing. It is not. It is an economic poison. An era of stagnation began.

The Bank of Japan reached for a new weapon. It did something revolutionary. In 1999, it became the first major central bank in history to cut its main interest rate to zero. The logic was desperate but simple. If money was free to borrow, perhaps companies would finally invest and households would finally spend rather than save. It was an extreme experiment designed to shock the system back to life. It was not enough. The economy remained stubbornly flat. So the bank went further. It invented an even more radical policy. It was called quantitative easing.

This was a new frontier of monetary policy. The Bank of Japan began creating new money, digital money, and used it to buy huge quantities of assets, mostly government bonds, from commercial banks. The aim was to flood the financial system with cash, pushing it out into the wider economy through a wave of new lending. For years, the world’s economists watched this grand Japanese experiment with detached fascination. It seemed like a strange policy for a strange problem in a distant country. Then came 2008. When the Western financial system imploded, central bankers in London, Washington and Frankfurt faced their own version of Japan’s crisis. They panicked. They found themselves with interest rates near zero and economies on the floor. So they opened the Tokyo playbook. Quantitative easing, the policy pioneered out of desperation by the Bank of Japan, went global. The experiment was over. It was now standard practice.

The global money machine is reversing

This change is not just about Japan. Not by a long shot. For decades, the world’s financial system ran on a hidden engine powered by cheap Japanese money. Big money. That engine is now sputtering. Its reversal threatens to send tremors through every major market on the planet, from the New York Stock Exchange to the bond markets of Frankfurt. The core of this mechanism has a name known to every City trader. It is the yen carry trade.

The trade was beautiful in its simplicity. A large hedge fund or a global bank could borrow vast sums of yen in Tokyo for almost nothing, because Japanese interest rates were stuck near zero. They would then take this borrowed money and exchange it for dollars, or euros, or Brazilian reals. The final step was to invest the cash somewhere it could earn a decent return, perhaps in American shares, high yield corporate bonds, or even the government debt of an emerging economy paying five percent a year. The profit was the difference, the spread, between the near zero cost of the Japanese loan and the higher return earned elsewhere. It was a giant, global arbitrage. It seemed like free money.

For thirty years this trade fuelled asset prices around the world. It was a one way bet. It pumped trillions of dollars of borrowed Japanese money into other markets, pushing up the value of everything from tech stocks to commercial property. Now, that bet is turning sour. The Bank of Japan’s decision to raise rates to 1.25 percent changes the entire calculation for these global investors. The carry trade is no longer a simple moneymaker. It is suddenly risky. The process of dismantling these positions, known as unwinding, is where the danger lies. Investors must now sell the foreign assets they hold. They must then buy back the yen they originally borrowed in order to repay their loans in Tokyo.

This is not a small adjustment. This is a tectonic shift. A synchronised, global rush to sell assets and buy yen could inject immense volatility into financial markets. Trillions of yen flowing home is a force that could hit stocks, bonds, and currencies all at once. The risk is not theoretical. It affects the real money of ordinary people. Huge institutional investors, including the pension funds that manage the retirement savings for millions of workers in Britain and America, have used versions of this strategy for years to boost their returns. They are now exposed. A disorderly unwinding could see them suffer significant losses, creating a wave of instability that could reach far beyond the trading floors of the City of London.

This is only the first step

This is just the beginning. The world’s financial markets are now focused on one single variable. The value of the Japanese yen. For years, its weakness was a given, a foundational assumption of global finance that allowed investors to borrow cheaply and speculate elsewhere. That assumption is now broken. If the yen strengthens significantly in response to higher interest rates, it will redraw the map for Japan’s economy. A stronger currency would be a direct blow to Japan’s corporate titans, the giant exporters like Toyota or Sony whose entire business model has for decades been predicated on a weak yen making their cars and electronics cheap for American and European customers. Their profits would shrink. Their global competitiveness would suffer. For ordinary Japanese households, however, a muscular yen is a blessing. It makes imported goods cheaper. Fuel for their cars will cost less. The foreign food filling supermarket shelves will fall in price. It is a direct boost to living standards for a population that has seen none for a generation. Two Japans. One helped. One hurt. The Bank of Japan cannot satisfy both.

The board in Tokyo faces an impossible choice. The bank has pledged to fight inflation. That was the reason given for this week's rate rise. The official statement promised to counter the risks from rising prices, a commitment that implies this small quarter point increase is only the first of many more to come. Yet every further turn of the screw risks strangling Japan’s anaemic economic growth and pushing the country back into the deflationary mire from which it has only just escaped. Hiking rates to cool an overheating economy is standard central banking practice. Hiking them into a weak economy, one that has known nothing but stagnation for thirty years, is a gamble of historic proportions. They must choose a path. Curb inflation or protect growth. They cannot do both. One priority must give way.

This decision is not being made in a vacuum. It is not a local difficulty. The path Governor Kazuo Ueda and his board choose in the coming months will send shockwaves far beyond Japan’s shores, determining the stability of global financial markets for the foreseeable future. A series of aggressive rate hikes could trigger the disorderly unwinding of the carry trade that investors fear, causing immense volatility in other countries. A retreat from the new policy, a decision to pause or reverse course, might calm nerves but would signal that the Bank of Japan has lost control of inflation, a different kind of crisis altogether. For thirty years, the world could rely on cheap money from Tokyo. That era is over. The certainty is gone. In its place is a new and profound instability, originating from the one country that was, until this week, the anchor of global finance.

Sources. BBC News Business: Japan raises interest rate to new 31-year high to curb rising prices. Al Jazeera: Japan’s interest rate hiked to 31-year high at 1.25% as inflation rises.

Analysis. Drafted with AI assistance from the sources listed above and reviewed by an editor before publication. Jnews links to the organisations it writes about.