US Treasury Secretary Scott Bessent’s recent assertive interventions in Japan’s monetary policy have sparked concerns among former Bank of Japan (BoJ) officials and economists, who warn that such involvement could undermine the central bank’s independence and provoke increased volatility in global markets.
Bessent has intensified his rhetoric in recent weeks, openly challenging traders to bet against him on the Japanese yen and asserting that he possesses insider knowledge of the BoJ’s intentions. His comments include a declaration that he is “the house now,” a statement that drew a cautious response from Japan’s finance minister, Satsuki Katayama, who described the remark as “a little scary” when translated into Japanese.
This heightened pressure coincides with expectations that the BoJ’s monetary policy board will raise interest rates by 0.25 percentage points to 1.25 percent at a key meeting scheduled for next week, signaling a quicker tightening pace than the bank’s previous gradual approach.
Takahide Kiuchi, an executive economist at the Nomura Research Institute and former senior BoJ official, described Bessent’s involvement as “exceptional,” emphasizing the risk it poses to the BoJ’s credibility. “If the Bank of Japan is seen as setting interest rates under external influence, future policy decisions will be met with skepticism, diminishing trust in one of the world’s most significant central banks,” Kiuchi said. Another former central banker echoed this view, highlighting the central bank’s vulnerability if it appears responsive to outside pressures.
Japanese government bond yields have surged alongside these developments, with the 10-year yield surpassing 3 percent—its highest level in three decades. Meanwhile, the benchmark 10-year US Treasury yield nears 5 percent, a psychologically important threshold for global markets. Given that bond yields move inversely to prices, these shifts indicate significant market adjustments.
Observers noted parallels with the late 1980s, when the US pressured Japan to support a strong dollar, a stance that led the BoJ to maintain low interest rates for an extended period and contributed to the country’s asset price bubble. Under President Donald Trump’s second term, US demands on Tokyo have intensified, including tariffs, calls for $550 billion in Japanese investment, and a reminder that Japan’s security alliance largely depends on Washington.
Ayako Fujita, chief Japan economist at JPMorgan and a former BoJ economist, cautioned that sustained US pressure could erode the bank’s long-term credibility. “If markets believe the BoJ is adjusting policy at the behest of the US, that would be quite damaging to its standing,” Fujita said.
Last month’s historic joint intervention by the US and Japan to support the yen, which had plunged to nearly ¥164 per dollar—its lowest level in 40 years—was followed by Bessent’s public confidence that the BoJ would “do the right thing,” widely interpreted as urging a rate hike. This week, he reiterated his view, claiming access to “asymmetric information” that gave him “pretty good insight” into the bank’s forthcoming actions.
Some analysts speculate that these exchanges might signal an informal arrangement, with Japan adjusting monetary policy in tandem with US objectives to secure ongoing support for the yen, which has since rebounded to around ¥154 per dollar.
Bessent has also criticized Abenomics, the extensive reflationary strategy associated with former Prime Minister Shinzo Abe and the BoJ, suggesting it has run its course. This perspective could provide the BoJ with greater latitude to alter its policies amid renewed pressure to move beyond Abe’s framework.
As the BoJ prepares for next week’s rate decision, the interplay between US influence and Japanese monetary policy remains under close scrutiny by policymakers and market participants alike.