Spanish egg prices rise amid US comparison

Why a dozen eggs costs €3 in Spain versus $1 in the US

How can a dozen eggs cost three euros in a Spanish supermarket while sitting at one dollar across the Atlantic? The question has circulated mockingly since a US price tag went viral as proof of local profiteering. The inconvenient detail: the comparison pits wholesale market prices against the final consumer price paid in Spain, including VAT, logistics, and distribution margins. A bulk box of fifty dozens is not the same as a loose dozen on Mercadona's shelf.

What real prices say about Spain

Data available to shoppers leaves little room for doubt. A dozen was priced at €3.80 at Mercadona and €3.30 elsewhere, with increases of twenty cents overnight. In the wholesale channel, buyers purchasing boxes of fifty dozens saw prices jump from €2.60 to €3.05 simultaneously—not just from one supplier, but all. This synchronized movement raises the most suspicion among professional buyers, who do not recall such alignment.

The official response came from Juan Roig, president of Mercadona, attributing the hike to avian flu: "prices rose by 20% because 160 million chickens died in the United States." Many customers were unconvinced, noting that eggs sold in Spain do not cross the Atlantic. That this argument mirrors those used for cocoa or coffee does not make it stronger.

The factor that actually moves the needle: avian flu

Avian flu exists and is a real problem. Documented outbreaks have occurred, and infection detected in urban park birds suggests the bicho may also be circulating in farms. Mass culling of laying hens reduces supply and pushes prices up. It is the classic mechanism of any commodity market: less supply, same consumption, higher price.

The issue is that this argument explains part of the picture, not the whole. In the US, a dozen reached $6.23 in March and fell to $5.12 in April, averaging $4.95 in January. Meaning, the country supposedly causing Spain's shortage has cheaper eggs than Spain even at its worst. The one-dollar figure circulating online refers to farm-gate or promotional big-box prices, not the average US consumer ticket.

The theory nobody wants to write down: margins and oligopoly

One analytical stream points directly to market structure. Spanish poultry production is not concentrated, but feed is: grains are controlled by three or four international operators, passing costs down the chain. Animal welfare regulations add to this, reducing hens per square meter and raising the cost per egg produced. Small farm owners state plainly: "four years ago I had a dozen for €2.50 and closed because I couldn't sell at margin prices."

The result is a market where producers earn little, intermediaries earn plenty, and consumers pay the bill. The lingering question is whether there is coordination or simply aligned incentives. No evidence of the former has been presented, but the simultaneous price hike across all wholesale suppliers in the same week is, at minimum, striking.

Egg sizes have shrunk too

A detail few notice affects wallets as much as price: size. Eggs labeled M or L are smaller today than a decade ago, and those formerly considered M now fall into S. Causes may lie in hen breed, diet, or age, but the effect is identical: you pay the same for fewer grams. Weighing cartons at the greengrocer's scale is becoming an exercise in economic hygiene.

What can be done and what cannot

Individual options are limited. Buying directly from free-range farms may match or beat supermarket prices but requires travel and planning. Keeping hens at home is subject to regulations and unrealistic for most. And the alternative of stopping egg purchases, as some suggest, clashes with the fact that eggs remain the cheapest animal protein in the basket.

Meanwhile, prices continue their course. If avian flu subsides and feed costs stabilize, the dozen should correct. If not, we will have to get used to looking at the egg shelf like we did the olive oil shelf two years ago: with respect and a calculator.