"It is not from the benevolence of the butcher, the brewer, or the baker that we expect our dinner, but from their regard to their own interest." — Adam Smith
Since late 2023, Houthi forces have been targeting commercial ships in the Red Sea. The channel that carries roughly 15% of world trade became too dangerous to use. Major shipping companies rerouted around Africa instead of through the Suez Canal, adding two or three weeks to each trip and tens of thousands of dollars to each voyage.
Saudi Arabia imports a significant share of what it consumes. The rice, oil, sugar, and most of what you find in a grocery store travels from somewhere far away, across oceans, through ports and warehouses.
So what happened when a major shipping lane was thrown into crisis?
The shelves stayed full.
That's the question worth sitting with: how?
There is no Director-General of Rice
Over 35 million people in Saudi Arabia wake up every morning needing food, fuel, medicine, clothes, and thousands of other goods that come from all over the world. No committee decides how many tons of rice enter Jeddah each week. No ministry official allocates supplies to each region. And yet, mostly, things are there.
Try to imagine managing it yourself. You're responsible for making sure the kingdom doesn't run short of anything tomorrow, during an active shipping crisis. You'd need to know the inventory at every port, the alternative shipping rates via the Cape of Good Hope, which global suppliers can ship fastest, the stock levels at every warehouse in every city, and the quantities needed by each region. Then you make your decisions based on all of that. Every day. And if you misjudge any one variable, some people find empty shelves.
This is impossible. Not because you're incompetent, but because this information can't exist in one place. It's distributed across millions of people and companies around the world: the importer in Jeddah knows his inventory, the trader in India knows his production capacity, the Greek shipping company knows its routes, the shopper in Abha knows exactly what she needs. Nobody sees the full picture. And yet the picture comes together.
Hayek's Knowledge Problem
How? Through prices.
When shipping costs through the Red Sea rose, prices on goods from Asia went up. That rise alone, with no decree or government order, set off a chain of adjustments: some importers found closer suppliers. Some stocked up early, before prices climbed further. Some companies found alternative routes through different ports. Consumers, finding some goods more expensive, shifted partially to substitutes.
None of this was coordinated from a single place. The price alone carried the message, each person acted on their own interest, and the collective result was an adaptation that no central planner anywhere could have produced.
The Austrian economist Friedrich Hayek called this the knowledge problem. The information any economic system needs to function is vast, dispersed, and changes by the minute. No person or computer can gather and process it in time. The market solves this automatically through prices, because every price summarizes millions of decisions and scattered pieces of information into a single number that everyone understands.
The strange thing about markets is that you don't notice them until they stop.