U.S. Treasury Secretary Scott Bessent has signaled a shift toward active currency intervention to stabilize the Japanese yen, marking a departure from the traditional Treasury preference for market-driven exchange rates. This move aims to curb excessive volatility and prevent drastic yen depreciation from destabilizing global trade flows.
For decades, the U.S. Treasury has viewed the foreign exchange market as a territory best left to the invisible hand, intervening only in extreme crises. That era of passive observation is ending. Scott Bessent is moving the Treasury toward a strategy of currency activism
, treating the exchange rate not just as a market outcome, but as a tool of national economic security.
The focus is the Japanese yen. As the yen hit multi-decade lows against the dollar, the resulting imbalance didn’t just hurt Tokyo; it created a distorted environment for U.S. exporters and complicated the Federal Reserve’s fight against inflation. By signaling a willingness to coordinate with the Bank of Japan, Bessent is effectively acknowledging that a currency in freefall is a systemic risk that requires a political solution.
Bessent’s Departure from Treasury Orthodoxy
The traditional Treasury playbook emphasizes that exchange rates should be determined by market forces. However, Bessent is rewriting that manual. His approach treats currency volatility as a direct threat to the stability of the U.S. dollar’s hegemony and the predictability of international trade.
This shift isn’t about picking winners or losers in a trade war, but about managing the “carry trade”—the practice of borrowing in low-interest currencies like the yen to invest in higher-yielding assets. When the yen swings violently, these trades unwind rapidly, triggering liquidations across global equity and bond markets. For Bessent, the risk of a “flash crash” in the yen outweighs the ideological commitment to non-intervention.
This is a reasoned pivot: if the U.S. allows the yen to collapse unchecked, it risks a chaotic deleveraging event that could freeze credit markets. By coordinating interventions, the Treasury can provide a “floor” for the currency, replacing panic with a managed glide path.
Coordination with the Bank of Japan
The mechanism for this activism is direct cooperation with Tokyo. Rather than the Bank of Japan fighting the dollar alone—which often exhausts reserves with little long-term effect—Bessent is positioning the U.S. to provide strategic cover. This could involve synchronized selling of U.S. Treasuries or coordinated liquidity injections to stabilize the yen’s value.
The stakes are high for the Japanese economy, where an overly weak yen drives up the cost of imported energy and food. For the U.S., the benefit is a more stable partner in the Indo-Pacific and a reduction in the “currency noise” that obscures real economic data. This coordination transforms the Treasury from a referee into an active participant in the currency markets.
The Risks of a Managed Exchange Rate
Active intervention is a double-edged sword. Once the Treasury enters the fray, it invites other nations to do the same. If the U.S. manages the yen, there is a logical progression toward managing the yuan or the euro to prevent similar imbalances. This creates a intervention arms race
where central banks spend more time fighting each other than managing their own domestic economies.
There is also the risk of market mispricing. When a government supports a currency, it removes the price signals that tell investors when an asset is overvalued. This can lead to the buildup of “zombie” positions—trades that only exist because of government support rather than economic fundamentals. If the Treasury ever decides to stop its activism, the resulting correction could be more violent than the volatility it originally sought to prevent.
The Next Move for the Treasury
The immediate focus now shifts to the upcoming quarterly reports on foreign exchange interventions. Market participants are watching for any evidence of stealth interventions
or official joint statements between the Treasury and the Bank of Japan that signal a formal agreement on target ranges for the yen.
The critical date to watch is the next G7 finance ministers’ meeting, where the framework for this new currency activism will likely be tested against the preferences of European allies, who may be wary of a U.S.-led effort to manipulate global currency flows.
