What Is Greedflation? (And What the Data Says)

Ask what is greedflation and you get two confident answers from people who have not read the same papers. One camp says corporations caused the whole thing. The other says the word is a slogan invented to avoid talking about money supply. Both are wrong, and the actual literature is more interesting than either.

Three studies, three findings. Start there.

What is greedflation supposed to mean?

The term describes a sequence, not a mood.

Costs rise for a real reason: a pandemic, a war, a shipping bottleneck. Every firm in the category raises prices, and customers accept it because the news has already explained why prices are going up. Then the input cost falls. The price does not. Margin expands and stays expanded.

Economists mostly avoid the word. Isabella Weber and Evan Wasner at the University of Massachusetts Amherst published the influential version in 2023 under the name sellers' inflation, arguing that a visible, shared cost shock lets firms in concentrated markets coordinate price increases without meeting in a room. The shock does the coordinating. Nobody has to collude when everyone reads the same headline.

That framing matters because it does not require villains. It requires market structure.

What did the Federal Reserve actually find?

The Kansas City Fed did the cleanest year-by-year decomposition, and its answer refuses to satisfy anybody.

Researchers there found that growth in corporate markups could account for more than half of inflation in 2021, and for very little in 2022. Read that twice. The mechanism was real and large in the first year, then largely stopped, while inflation kept running on energy, shelter and wages.

Across the Atlantic, IMF researchers found that rising corporate profits accounted for close to half of the increase in European inflation over the two years through mid-2023. The European Central Bank reached a similar conclusion about domestic price pressures in the euro area. Different continent, same mechanism, and central bankers said it out loud.

The Economic Policy Institute, working on U.S. nonfinancial corporate data, found profits accounted for roughly 54% of the rise in prices from mid-2020 through 2021, against a historical contribution closer to 11%.

So who argues the other side?

Economists who think the profit share is a thermometer, not a fire.

The counterargument runs like this. When demand surges and supply is constrained, prices rise to clear the market, and whoever holds inventory books a windfall. Higher margins are what a shortage looks like from the income statement. No extra greed is required, and once supply recovers, margins normalize on their own. Several Federal Reserve researchers have made versions of this case, and the KC Fed's own 2022 finding supports it: the markup contribution faded without any policy change aimed at it.

The honest reading sits between the camps. Markups explain a real slice of the 2021 surge and much less of what followed. Anyone quoting a single percentage as the answer has picked a year and hidden it.

Weber and Wasner's contribution was to explain the coordination problem without invoking a conspiracy. Raising price first is dangerous. You lose customers to whoever holds. A public, universally reported cost shock removes that risk, because every competitor reads the same story and every customer has already been told to expect an increase. The shock functions as a signal, and the signal does the work a cartel would otherwise have to do in a room with lawyers present.

That reframes the question from motive to opportunity. Nobody needs to argue that executives became greedier in 2021. They needed one thing they had not had since the 1970s, which was permission.

We put the competing numbers side by side in how much of inflation was profit-taking.

Why won't prices come back down if the costs did?

Because falling prices require someone willing to cut first.

That is a structural question, and the U.S. structure has consolidated. USDA data shows four processors handle roughly 80% of U.S. beef. The four largest grocery retailers hold about a third of sales, up from under 20% in 1990 (USDA ERS).

Source: USDA. Figures rounded; concentration varies by region and product.

Consolidation at that level changes what a price cut means. A firm that drops price to win share hands its three rivals a week to match, after which everyone sells the same volume at a lower margin. The rational move is to hold. Nobody has to agree to anything.

The FTC's 2024 report on grocery supply chain disruptions found that large retailers' revenue relative to total costs rose above pre-pandemic levels, and that some firms raised prices beyond what their own costs required. That is a regulator describing observed margins, not an activist making a claim.

Egg prices show what the alternative looks like. A real constraint hit, the price spiked, the constraint cleared, the price fell. That retreat is the tell. Most of the store never staged one, which is the pattern we trace in why groceries are so expensive and why everything got more expensive.

Does the greedflation fight even matter to your budget?

Only through the policy it points at.

If markups drove the increase, antitrust enforcement and pricing rules are the lever. If demand drove it, interest rates were the lever, and the Fed already pulled it. Getting that diagnosis wrong costs years.

But notice what neither camp disputes. BLS data puts food-at-home prices roughly 25% above 2019, and that level is not reversing. The federal minimum wage has been $7.25 since 2009 (U.S. Department of Labor). Whether the 25% came from markups or from demand, the same households absorbed it, and none of them got a vote on the mechanism. The same gap shows up in every cost category we track.

The greedflation debate is a fight about attribution, and attribution is where policy gets decided. Corporate profits explained a large share of 2021 and a small share of 2022, which means the mechanism is real, bounded, and concentrated in exactly the industries where four firms set the shelf price. What did not change in any year of the argument is the denominator. Prices found a new level, the wage floor stayed where Congress left it in 2009, and the gap between the two is the actual crisis the word greedflation keeps circling.