At the checkout counter, a certain type of annoyance gradually accumulates. According to the headlines, inflation is declining. The charts for cocoa have flipped over. Shipping costs have decreased from their peak during the pandemic. However, compared to last spring, the receipt you are holding still appears heavier. The cost of bread, cooking oil, and the little bottle of shampoo next to the register all appear to be unaware that the world is supposedly becoming more affordable.
This discrepancy between the actions of input markets and shelves has a term used by economists. They refer to it as stickiness, and it’s one of those ideas that seems abstract until you stand in a grocery aisle and experience it firsthand. It turns out that prices don’t behave as the textbooks say. When expenses increase, they rise swiftly and remain there obstinately long after the initial pressure has subsided. There is a perception that retailers are hesitant to allow a number to decline after they have raised it.
| Topic Information | Details |
|---|---|
| Subject | Price stickiness and commodity market behavior |
| Field | Macroeconomics, consumer pricing, monetary policy |
| Core concept | Resistance of retail prices to fall even as input costs decline |
| Originating thinker | Armen Alchian, with later work by Bils and Klenow |
| Related term | Nominal rigidity, wage stickiness |
| Key drivers | Menu costs, long-term contracts, imperfect information, loyalty pricing |
| Recent commentary | January 2026 analysis from Daily Sun and Investing.com |
| Current commodity context | Tin, copper, and food staples seeing mixed pressure across global supply chains |
| Consumer impact | Persistent retail inflation despite easing wholesale costs |
| Geographic scope | Global, with sharper effects in import-dependent economies |
There is a mechanical component to the explanation. Frequent downward adjustments are discouraged by menu costs, which include the actual cost of reprinting price tags, updating systems, and renegotiating distributor contracts. When futures cool, a bakery that increased the cost of a loaf during the 2022 wheat spike won’t call a board meeting. The manager may have just not had time to do it. It’s also possible that they have quietly observed that complaints from customers have ceased months ago.
Decades before any of this was discussed at the dinner table, Armen Alchian proposed something more intriguing. Businesses are considering more than just the cost of today. They are considering the future demand’s present value. Instead of being lazy, a fast-food chain that maintains its lunch price during a busy noon hour is safeguarding predictability, which has its own quiet value. Consistency is rewarded by customers in ways that aren’t always evident in a single transaction.
This reasoning also explains why it takes so long for wages, which are essentially just the cost of labor, to change. While a temporary shortage is by definition temporary, employers are aware that a raise is a multi-year commitment. Bonuses, retention payments, signing fees, and anything else that doesn’t guarantee a fixed expense are what they aim for. The squeeze is felt by employees. Businesses safeguard their balance sheets. Neither side is acting irrationally.
The commodity picture adds to the complexity. While tin is still under pressure due to unrest in Myanmar and the Democratic Republic of the Congo, copper has cooled in some areas. Even though some charts indicate calm, there isn’t a globally synchronized decline in input prices. Additionally, the entire downstream pricing structure has an excuse to remain firm when one or two key inputs remain high.
As this develops, it’s difficult to ignore how much of contemporary pricing is more about timing and psychology than supply-and-demand calculations. Retailers have discovered that the previous round of increases was absorbed by consumers. Why check to see if they would observe a decline? It’s still unclear if a new normal has quietly taken hold or if that calculation will hold once competition reemerges. For now, the shelves are not eager to learn.