MONEY · ECONOMY

Your grocery bill isn't inflation anymore. It's just the new price.

Inflation is a rate of change. Once the rate goes back to normal, the price doesn't go back with it — and pretending otherwise is doing a lot of quiet work for somebody's margin.
A receipt. The cereal costs what it costs now. It is not coming back down.
A receipt. The cereal costs what it costs now. It is not coming back down.

Every few months there’s a headline announcing inflation has “cooled,” and every few months someone reasonably expects that means prices are heading back down. They aren’t, and the confusion is doing real work for whoever benefits from it.

Inflation measures how fast prices are rising. When that rate falls from, say, 8% to 3%, prices are still rising — just more slowly. They are not falling. The cereal that cost $3 and now costs $6 does not go back to $3 because the rate of increase slowed down. It stays at $6, and next year it becomes $6.20. “Cooling” describes the speed of the climb, not a change in direction.

Two different numbers wearing one name

A rate and a level are not the same thing, and conflating them is either an honest mistake or a convenient one, depending on who’s making it. When a company’s cost inputs actually do fall — cheaper shipping, cheaper wheat, a stronger currency — the retail price rarely follows them back down at the same speed it followed them up. Prices are famously sticky on the way down and elastic on the way up, and every point where “inflation cooled” gets used to imply relief is a point where that asymmetry gets to hide in plain sight.

That’s not a conspiracy. It’s just that nobody’s incentivized to correct the misunderstanding, because the misunderstanding makes people feel like relief is coming instead of asking why a price hike, once made, essentially never gets un-made.

What to actually track

Stop watching the inflation rate as a proxy for your grocery bill. Watch the level — what things actually cost, this month, compared to what they cost before the run-up started, not compared to last month. The rate tells you how fast the hole is being dug. It doesn’t tell you how deep the hole already is, and the hole is the number that’s actually in your

THE POINT
'Inflation cooled' is a true statement about a rate. It is not a statement about your grocery bill, which is a level — and the level never resets just because the rate did. Two different numbers, one of them keeps getting used to explain the other.
WRITTEN BY
Sarah Bennett
Covers labor, money, and the gap between the two. Reads the footnotes so you don't have to.
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2 comments. The good ones come with receipts.
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