Bank of America Pinpoints 3 Key Drivers Behind Dollar's Strength

NEW YORK, March 2025 – Despite the recent strength of the US dollar, Bank of America's research team points out that the real determinant of its trajectory is not the superficial appreciation, but the complex structural forces behind it. As the world's primary reserve currency, the dollar's recent strength stems from the interplay of multiple factors, and clarifying these drivers is of profound significance to investors and policymakers. While the Dollar Index (DXY) has been climbing recently, not all gains are equally sustainable. Bank of America emphasizes that the trigger for dollar strength determines the nature of its market impact: Is it due to rising risk aversion, driven by aggressive Fed rate hikes, or due to global economic growth divergence? The three correspond to different market mechanisms and risk signals. Since 2022, the dollar has entered a new round of strong cycles, with volatility significantly higher than the historical average. BofA's currency strategy team points out that the current rally is driven by three core factors: monetary policy divergence, global growth gap, and increased market volatility. These three factors overlap to form a complex price transmission path. Monetary policy divergence is the core engine. Unlike the European Central Bank and the Bank of Japan, which are gradually shifting to easing, the Federal Reserve maintains a tight stance in 2025, with the goal of ensuring that inflation returns to 2% stably. This policy difference has pushed up the real yield on dollar assets. By comparing inflation-adjusted bond yields in the United States with those in the Eurozone and Japan, BofA found that the widening interest rate spread is highly positively correlated with dollar appreciation.

At the same time, the dollar's "safe-haven currency" attribute continues to play a role. Recent increases in global geopolitical risks and pressure on some asset classes have prompted investors to engage in typical "risk aversion" operations, with large amounts of funds pouring into safe assets such as US Treasuries, further boosting dollar demand. This panic-driven buying, while having a short-term impact, is less sustainable than an increase supported by fundamental differences. In addition, uneven global economic recovery has exacerbated the dollar's relative advantage. Supported by resilient inflation and a robust labor market, the US economy has demonstrated strong endogenous momentum, while other major economies face slowing growth pressures. This relative divergence in fundamentals makes the dollar a "safe haven" and "value anchor" in global capital allocation. Overall, the current strength of the dollar is not due to a single factor, but the result of a resonance of policy, sentiment, and structural forces. Future trends will depend on the evolution of the Fed's policy path, changes in global risk appetite, and revisions to growth expectations for major economies.