Fed Holds Interest Rates Steady — Iran Crisis Structurally Obstruct

📡 Signal — What Happened

Why it matters: The world's largest central bank is caught between geopolitical risks and inflation, entering a phase where receding rate cut expectations are causing ripple effects across global financial markets and the Japanese economy. The FRB's policy stagnation will be a watershed moment determining the direction of the global economy in 2026.

• Monetary Policy — The FRB (Federal Reserve Board) decided to keep the policy interest rate unchanged at the FOMC meeting on March 18, 2026.
• Monetary Policy — FRB Chair Powell made it clear that rate cuts would not occur until inflation is confirmed to have settled.
• Geopolitics — The escalating situation in Iran is recognized as a factor driving up energy prices.
• Energy — Iran-related geopolitical risks are pushing up crude oil prices, increasing inflationary pressure in the U.S.
• Market Trends — The financial markets widely expect a slowdown in the pace of future rate cuts.
• Economic Outlook — Chair Powell described the impact of rising energy prices due to the Iran situation on the American economy as "unclear."
• Monetary Policy — The FRB had been gradually cutting rates since late 2025, but has shifted to a cautious stance in 2026.
• Inflation — The U.S. CPI (Consumer Price Index) continues to track above the FRB's 2% target.
• International Finance — Expectations of a slower FRB rate cut pace are sustaining upward pressure on the dollar, raising concerns about its impact on emerging market currencies and the yen.
• Energy Market — WTI crude oil futures prices have risen to the $85 per barrel range amid the escalating situation in Iran.
• Bond Market — The U.S. 10-year Treasury yield remains elevated in the 4.3% range even after the decision to hold rates.
• Japanese Economy — A prolonged FRB rate hold will sustain yen depreciation pressure by maintaining the Japan-U.S. interest rate differential, also influencing the Bank of Japan's policy decisions.

To correctly understand the FRB's decision to hold interest rates this time, it is necessary to historically review the major trends in American monetary policy in the 2020s and the structural impact of geopolitical risks on macroeconomic policy.

Since the COVID-19 pandemic in 2020, the FRB implemented unprecedented large-scale monetary easing, lowering the policy interest rate to near zero and conducting massive asset purchases. While this ultra-loose policy supported a rapid economic recovery, it also led to inflation rates surging to over 9% by 2022, a 40-year high. The FRB then embarked on a rapid rate-hiking cycle starting in March 2022, implementing an historically aggressive monetary tightening by raising the policy rate to 5.25-5.50% in just 16 months.

This rate-hiking cycle paused in late 2023, and the era of "higher for longer" interest rates continued throughout 2024. As inflation gradually declined, market expectations for rate cuts grew, and the FRB finally began cutting rates in late 2025. However, this rate-cutting cycle did not proceed as rapidly as initially expected by the market.

Behind this was the rapidly changing geopolitical environment from 2025 to 2026. In particular, the escalating situation in Iran fundamentally altered the risk to energy supply in the Middle East. The Strait of Hormuz is a strategic chokepoint through which approximately 20% of the world's oil trade passes, and instability in this region directly and immediately impacts crude oil prices. The deterioration of the Iran situation since early 2026 pushed crude oil prices into the high $80s, making the FRB's most feared risk of energy-driven inflation resurgence a reality.

Historically, central banks have repeatedly faced situations battling inflation stemming from geopolitical risks. During the First Oil Crisis in 1973, the oil embargo by Arab oil-producing nations caused inflation to skyrocket, and then-FRB Chair Arthur Burns succumbed to political pressure, failing to tighten sufficiently, which ultimately led to stagflation. In 1979, Paul Volcker became FRB Chair and curbed inflation with the drastic measure of raising the policy rate to nearly 20%, but at the cost of a severe recession.

The dilemma facing Chair Powell in 2026 echoes the lessons of the Volcker era. Once inflation expectations lose their anchor, controlling them incurs a far greater cost. Chair Powell's explicit statement that "rate cuts would not occur until inflation is confirmed to have settled" is rooted in a strong institutional memory of not repeating the mistakes of the 1970s.

At the same time, the current FRB is in a politically complex position. Under the Trump administration, political pressure on central bank independence has historically intensified, and the FRB is forced to walk a tightrope between calls for rate cuts from the political side and policy decisions prioritizing inflation suppression.

Furthermore, the ripple effects of this decision to hold rates on the global financial environment are crucial. A slower FRB rate cut pace will maintain a strong dollar, increase capital outflow pressure on emerging economies, and mean prolonged exchange rate risk for Asian economies, including Japan. As the Bank of Japan explores a cautious rate-hiking path, a scenario where the Japan-U.S. interest rate differential does not narrow will rebound on the Japanese economy in the form of sustained yen depreciation and accompanying import inflation.

Thus, the FRB's decision to hold rates is not merely a single policy judgment, but a nexus where multiple structural factors—geopolitical risk, inflation expectations, political pressure, and the international financial order—intersect.

The delta: By explicitly positioning the rise in energy prices due to Iran's geopolitical risk as a variable in its inflation assessment, the FRB has expanded the conditions for resuming the rate cut cycle from merely "domestic economic data" to include "the resolution of geopolitical risks." This marks a turning point that structurally alters the rate cut path the market had priced in.