
The US economy suffers only one-twentieth the GDP hit from a major oil disruption compared with 1980, Dallas Fed economists found. The paper's sensitivity tests show the US stays below a half-point hit even in worst-case scenarios.
The 2026 Iran war disrupted global oil supplies. A new Dallas Fed working paper puts hard numbers on how much less the U.S. economy suffers compared with 1980.
George Alessandria and Shafaat Khan built a two-country model that isolates the effect of a large geopolitical oil supply disruption on U.S. output relative to the rest of the world. Their finding: today a shock of the same size cuts U.S. real GDP growth by only one-twentieth of what it delivered in 1980. The U.S. decline is just one-sixth of the hit felt abroad.
The authors wrote that the smaller impact reflects structural changes. Energy intensity of U.S. GDP has fallen by roughly half since the early 1980s. Domestic oil production has surged, lowering the passthrough from global crude oil prices to domestic gasoline and industrial input costs. The dollar's reserve currency role gives the Federal Reserve more room to offset any inflationary pulse.
Alessandria and Khan's baseline scenario assumes a 30% disruption that lasts six months. In 1980 the same shock would have knocked U.S. growth by about two percentage points. Today the impact is roughly 0.1 percentage points, the authors wrote. That is not enough to push the economy into recession on its own.
Vulnerability is concentrated elsewhere. Emerging markets and developed economies that remain net importers face the full one-sixth GDP hit in the model. Europe and parts of Asia take larger losses. That asymmetry matters for currency pairs, corporate credit spreads, and commodity demand curves. The authors noted that inflation expectations may decouple from oil. The 2022 spike showed the Fed willing to look through energy-driven inflation as long as core measures remained anchored. The model suggests the Fed would hold rates steady, not tighten, they wrote.
The trade spillover adds another layer. The rest of the world accounts for roughly 40% of S&P 500 revenues. A sharp contraction abroad hits earnings even if domestic energy costs remain contained. The model embeds that effect. The magnitudes depend on the duration of the outage and the policy response in affected economies, the authors said.
The Dallas Fed paper's appendix runs sensitivity tests for longer disruptions and larger price spikes. Even at a 50% output cut for 12 months, the U.S. GDP decline stays below half a percentage point, the authors found. The rest of the world takes losses of 2-3 points.
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