The difference between a price spike and inflation

Let me state the opposing case honestly, because it deserves to be heard. Gasoline is everywhere in the American economy — in the truck that moves the food, in the plastic that wraps it, in the commute that gets the worker to the factory. When the price of oil jumps sharply because of a military conflict, the ripple effects are real, broad, and painful. Calling that an "oil shock" rather than "inflation" can feel like a semantic escape hatch for policymakers who should be held responsible. I understand the frustration.

But the distinction is not semantic — it is the most operationally important distinction in monetary economics. A sudden rise in the price of one commodity, however central, is a relative price change. It tells producers and consumers to use less of that commodity and more of its substitutes. That is the price system doing exactly what it should. What it does not do, on its own, is raise the general level of prices sustainably. For that, you need more money chasing the same goods. (Inference, not recollection: I cannot confirm current money-supply figures from the headline alone.)

The Fed's upstream decision

Here is the question I would put to every senator now demanding hearings: what was the rate of money-supply growth in the twelve to eighteen months before this headline? If the monetary base and broad money aggregates were already expanding faster than the real economy could absorb, then the oil shock did not cause 4% inflation — it merely revealed it, gave it a convenient political address, and allowed the responsible parties to point at a map of the Middle East instead of at themselves.

This is the oldest trick in the central-banking playbook, and the public pays for it every time. Transitory, they will say. Supply-side. Geopolitical. Every adjective except the accurate one: monetary. (Inference: I do not know the Fed's current balance-sheet posture from the headline provided.)

What a responsible central bank does now

The prescription is not complicated, though it is politically uncomfortable. A central bank that has been running an accommodative posture must not use a supply shock as an excuse to ease further — that is precisely the error the Federal Reserve made repeatedly in the 1970s, validating each oil-price surge with a new round of monetary expansion until inflation became entrenched in wage contracts and expectations. The lesson Paul Volcker taught at considerable cost to employment was that you cannot borrow your way out of an expectations spiral. You can only stop feeding it.

If the Fed today holds the line on money growth — genuinely holds it, not merely adjusts its language — then a 4% headline driven by gasoline will be self-correcting as the energy market adjusts. If it loosens in response to political pressure from a war economy, that 4% is not a ceiling. It is a floor.

The free-trade corollary

One last point, which the headline's war context makes urgent. Every barrier we erect to energy trade, every sanction architecture that fragments the global oil market, raises the floor from which these shocks depart. The cost of protection is always paid by the consumer, and in energy markets that cost is paid at every gas station in America. I have said for decades that free trade is not a favor we do for foreigners; it is a favor we do for ourselves. A more integrated global energy market is a more shock-resistant one. (Inference: specific sanction details are beyond the headline provided.)

The actionable counsel is simple: watch the money supply, not the news footage from the Gulf. The former will tell you where inflation is going; the latter will only tell you where the blame will be directed.