The United States services sector, which accounts for the largest share of domestic economic activity, expanded at a notably slower pace in March as the ongoing military conflict with Iran sent oil prices surging and forced businesses to pull back on hiring.
The slowdown marks one of the clearest signs yet that geopolitical shock has begun transmitting directly into the domestic economy.
For investors and policymakers, the timing could not be more uncomfortable. Inflation pressures were already elevated entering spring, and now fresh supply-side shocks tied to the Iran conflict are threatening to push price gauges higher at the exact moment the Federal Reserve had hoped to plot a path toward easing.
Services Growth Stumbles as Oil Costs Bite Into Business Margins
The Institute for Supply Management’s Services PMI, a closely watched barometer of activity across industries from finance to healthcare, decelerated in March as input cost sub-indices spiked alongside energy prices.
Oil markets have been volatile since hostilities involving Iran escalated, with Brent crude benchmarks climbing sharply on supply disruption fears and regional shipping constraints in the Persian Gulf corridor.
Service companies, which rely heavily on transportation, logistics, and energy-intensive operations, absorbed those cost increases rapidly.
Many responded by trimming payrolls rather than expanding headcount, a direct signal that the employment component of the broader economy is beginning to crack under geopolitical stress.
Labor Market Softening Adds Complexity to the Fed’s Calculus
The employment sub-index within services activity data fell into contraction territory in March, suggesting net job shedding among service providers. This is significant because the labor market has been the Federal Reserve’s last line of defense against a harder economic landing.
A softening jobs picture alongside rising inflation creates a stagflationary undertone that the Fed has historically struggled to navigate cleanly.
Federal Reserve Chair Jerome Powell has repeatedly stressed that the central bank remains data-dependent. But when inflation is climbing due to a war-driven oil shock and the labor market is simultaneously weakening, neither a rate cut nor a rate hike offers a clean solution.
Markets are already reassessing the probability of a June rate reduction.
Inflation Expectations Climb as Energy Prices Remain Unanchored
Breakeven inflation rates, derived from the spread between nominal Treasury yields and Treasury Inflation-Protected Securities, have drifted higher in recent weeks as oil price volatility feeds into consumer price expectations.
The five-year breakeven rate, a standard gauge watched by the Fed, has ticked up in a manner that complicates the central bank’s messaging around price stability.
Services inflation, which the Fed considers stickier and more persistent than goods-driven price increases, now faces an additional accelerant from energy pass-through costs.
If companies cannot absorb higher input costs through productivity gains, price increases will flow directly to consumers, keeping the Consumer Price Index elevated well into the second half of 2026.
Oil Leads the Asset Response While Gold and Bonds Signal Caution
Oil remains the primary transmission channel from the Iran conflict to financial markets, with Brent crude sustaining elevated levels that reflect genuine supply risk rather than speculative excess.
Gold has also attracted safe-haven flows, with prices holding firm near multi-month highs as investors hedge against both inflation and geopolitical uncertainty simultaneously.
US Treasury yields have responded in a somewhat contradictory fashion, with shorter-dated yields dipping on recession concerns while longer-dated yields remain supported by stubborn inflation expectations.
The dollar index has strengthened modestly on safe-haven demand, though a sustained DXY rally could tighten global financial conditions further and complicate growth outlooks in emerging markets exposed to dollar-denominated debt.
The Road Ahead Depends on How Long the Conflict Lasts
The central scenario for most macro analysts is that economic pain remains contained if the Iran conflict stabilizes within the next two quarters.
However, a prolonged or escalating confrontation that further disrupts Gulf shipping lanes or threatens broader regional oil production could lock in stagflationary dynamics that force the Fed into an extremely difficult policy stance heading into late 2026.
The next Federal Open Market Committee meeting will take place against this backdrop of rising prices, slowing services activity, and deteriorating employment sentiment.
Policymakers will need to weigh whether war-driven inflation is truly transitory, as supply shocks theoretically are, or whether second-round effects through wages and services prices make it persistent enough to demand a hawkish response.
Either decision carries meaningful recession risk if the conflict refuses to resolve quickly.
Not Financial Advice: This article is for informational purposes only. Market and commodity prices are volatile and can change rapidly. Always do your own research before making investment decisions.
