The Great Global Rate Divergence: How the BOJ is Defying the Western Consensus

The Bank of Japan’s headquarters on Nihonbashi-Hongokucho, an ancient granite-faced structure that resembles a museum from the Meiji period rather than the command center of the last major monetary anomaly in history, exudes a certain silence. Inside, Kazuo Ueda has been raising interest rates for the better part of two years—something his predecessors shied away from for thirty years. He did it once more in December, raising the policy rate to 0.75%, the highest level since the mid-1990s. By doing this, he deviated from the plan that the Bank of England, the European Central Bank, and the Federal Reserve had been following all year.

It’s difficult to ignore how odd this appears. The Fed made a cut. A committee at odds with itself was betrayed by the Bank of England’s narrow 5–4 vote. Leaning into the cautious calm of an area where inflation appears to be behaving mercifully, the ECB held. And then there is the BOJ, tightening into a loosening world and raising rates while everyone else seeks to flee. Ueda seems to be subtly refusing to follow the consensus rather than actively opposing it.

When you walk through the reasoning, its modesty is almost domestic. For much longer than the bank initially anticipated, inflation in Japan has remained above target. After thirty years of almost no movement, wages are now finally increasing, a phenomenon that Tokyo economists describe with the cautious enthusiasm of those who have previously been let down. Meanwhile, the value of the yen has been declining. Household purchasing power has decreased, import prices have increased, and there is clear political pressure to take action—even from Prime Minister Takaichi’s office. Naturally, the BOJ maintains its independence. Ueda has made it clear. However, independence is rarely as pure as central bankers claim.

The divergence’s effects on global money are what make it truly fascinating. Japan has long been the world’s most affordable source of funding; you can borrow yen from them to purchase goods that will yield more elsewhere. Capital flows from Sydney to São Paulo have been influenced by the carry trade in all of its manifestations. Even a gradual tightening of the BOJ poses a threat to that arrangement in ways that are still unclear. It appears that investors think the unwind will be gradual. They might be mistaken.

The paradox of the yen itself is another issue. The yen declined as the BOJ increased interest rates. That shouldn’t occur, at least not in any graduate-level textbook. However, given the uncertainty surrounding tariffs, tensions in the Middle East, and the slowing U.S. economy, Ueda’s forward guidance was ambiguous—possibly on purpose. The markets desired clarity regarding the rate of increases. Instead, they were given philosophy. They were penalized by the yen for their disappointment.

As this develops, it seems as though the post-2008 era of synchronized central banking, in which all of the major banks appeared to act in unison, is truly over. The White House wants cheaper money to pay off an increasing amount of debt, which the Fed must contend with. The comfort of inaction is preferred by the ECB, which is positioned at what officials refer to as neutral. Three decades later, the BOJ is at last normalizing into a world that might not want it.

Walking through any Tokyo trading floor gives one the impression that this is the year that the preconceived notions have come to an end. It will take some time to determine whether the BOJ’s unconventional course turns out to be prudent or premature. But for the time being, Ueda continues to move alone, slowly, and purposefully.