Headline inflation has drifted down from the peaks of 2022, and interest rate policy has shifted accordingly, with central bankers signaling that the worst of the price surge is behind. Yet a walk down any supermarket aisle tells a different story. Eggs, coffee, cereal, canned goods — the line items that make up a typical grocery run — remain stubbornly close to their post-pandemic highs, even as the raw inputs behind them (grain, fuel, packaging) have eased considerably. The gap between what economists call “disinflation” and what shoppers actually experience at checkout has become one of the more politically charged puzzles in the current economy, and it deserves a clearer explanation than the one usually offered.
Why Prices Are Sticky on the Way Down
Prices, as a general rule, move up faster than they move down. Economists have a term for this: asymmetric price adjustment, sometimes nicknamed “rockets and feathers,” after the observation that prices rise like rockets and fall like feathers. The mechanics are not mysterious. Raising a price is a single decision, often triggered defensively when input costs jump and margins are at risk. Lowering a price back down requires a company to voluntarily give up margin it has already absorbed into its cost structure, forecasts, and shareholder expectations. There is rarely urgency to do that unless a competitor forces the issue.
That competitive pressure is exactly what has been missing in large parts of the grocery supply chain. Consolidation among food processors, packaged goods manufacturers, and grocery chains has been a decades-long trend, and it tends to reduce the number of players who would otherwise be racing each other to win back price-sensitive shoppers. When three or four companies control most of a category, the incentive to cut prices unilaterally is weaker; each player can watch the others and adjust in lockstep, without ever needing to coordinate outright.
The Difference Between Sticky and Rigged
Here the conversation tends to fracture into two camps, and both oversimplify. One side insists this is simple, provable price-gouging — a story of corporate greed exploiting a crisis. The other insists it is nothing more than the ordinary lag of markets adjusting to new cost baselines, with nothing to see and no policy response required. The more honest answer sits uncomfortably between the two.
Menu costs are real: reprinting shelf tags, renegotiating supplier contracts, and adjusting private-label pricing all take time and administrative effort, which naturally slows price declines even in fully competitive markets. But market structure is also real, and it shapes how much room companies have to be slow. In a market with many substitutable competitors, sluggish price cuts get punished quickly by customers switching brands. In a market with few real substitutes, sluggishness carries little cost. Concentration does not require a conspiracy to produce conspiracy-like outcomes; it simply removes the pressure that would otherwise force prices down in line with costs.
What Regulators Can and Cannot Fix
This is where the policy debate gets genuinely difficult, and where a lot of political rhetoric overpromises. Antitrust enforcement, price-gouging statutes, and windfall-profit taxes each address a different piece of the problem, and none of them work quickly. Antitrust cases against food and beverage conglomerates, where they exist, often take years to litigate and rarely result in the kind of structural breakup that would meaningfully increase competition on a grocery shelf within a single budget cycle. Price-gouging laws, which exist in some form in many jurisdictions, generally only apply during declared emergencies, not to the slow-motion stickiness that persists well after any acute shock has passed.
What regulators can more plausibly influence is transparency and information flow — publishing more granular data on wholesale-to-retail markups by category, for instance, so that the public and legislators can see where margins have expanded versus where they have simply tracked costs. That kind of disclosure will not lower a single price tag on its own, but it does shift the burden of explanation onto companies that have historically been able to blame “inflation” as a catch-all, undifferentiated cause. Once wholesale costs and retail prices are visible side by side over time, the rockets-and-feathers pattern becomes harder to wave away as a coincidence.
What Actually Moves the Needle
Historically, the thing that reliably brings grocery prices back down is not regulation but renewed competition — new entrants, private-label expansion, or a genuine price war among incumbents trying to win back market share. Private-label goods, in particular, have tended to apply real discipline on national brands in categories where store brands have improved in quality; shoppers trading down to a supermarket’s own label sends a signal that brand loyalty has limits, and that signal shows up in earnings calls faster than any regulatory letter does.
There is also a demand-side lever that gets less attention than it deserves: household switching behavior. Prices stay sticky in part because enough consumers keep buying out of habit even when a cheaper substitute sits one shelf over. Loyalty, convenience, and inertia are all forms of pricing power that companies count on, and they are the one part of this equation that does not require an act of legislation to change.
None of this means shoppers should expect a snapback to 2019-era prices; a meaningful share of the increase reflects genuinely higher costs for labor, transportation, and packaging that are unlikely to reverse. But the portion of today’s grocery bill that reflects margin expansion rather than cost pass-through is a legitimate question for policymakers, journalists, and consumers to keep asking, and it is one that headline inflation figures — built to track the pace of change rather than the level of prices — are poorly designed to answer on their own. The disinflation story and the affordability story are not the same story, and treating them as interchangeable is part of why the gap between official data and household experience keeps widening.
