Why It Is Not About Capitalism vs Socialism
The debate about central planning is almost always framed as a political argument — markets versus government, capitalism versus socialism. That misses the real point.
The real problem with central planning is not ideological. It is informational.
It is not that central planners have bad intentions. It is that they cannot possibly know enough to do the job. And the knowledge they need is not the kind that can be collected in a report or stored in a database.
The Knowledge That Cannot Be Written Down
Suppose a government wants to plan the production of shoes for a whole country. They set up a planning committee. The committee gathers data:
- Population: 68 million
- Average shoe size: 9 (men), 6 (women)
- Average number of pairs bought per year: 2.5
- Climate: temperate, some rain
So the committee orders: 85 million pairs of leather shoes in various sizes.
What did they miss? Everything that makes the shoe industry actually work.
Local knowledge. A shoemaker in Boston, MA or Tribeca, NYC knows that people in this part of the city prefer wide-fit shoes because of the cobblestone streets. A shop in a University town knows that students want cheap shoes, not durable ones, because they will buy new ones next year anyway. A sports shop knows that this year the school has switched from baseball to tennis, so suitable sneakers are suddenly in demand.
Tacit knowledge. The leather cutter knows that a particular batch of leather is slightly thinner than usual, so he needs to adjust the cutting pattern. The factory manager knows that the machine on line three makes a clicking noise before it breaks, and the factory works better if you schedule maintenance just before the noise starts. The delivery driver knows that the corner shop on Elm Street has a narrow doorway and cannot accept large delivery pallets.
Changing knowledge. People’s preferences change every day. A new fashion trend emerges. A celebrity wears a certain boot. A heatwave makes people want sandals instead of closed shoes. Shoe factories adjust to all of this in real time — if they can see what people are buying.
A central planning committee cannot know any of this. They cannot put it in a spreadsheet. They cannot send a questionnaire that captures it. By the time they collected the data and made a decision, the information would already be out-of-date.
Hayek’s Insight
In 1945, the economist Friedrich Hayek wrote an essay called “The Use of Knowledge in Society.” It is one of the most important articles ever written about economics, and it makes a single point:
The knowledge needed to run an economy is dispersed among millions of individuals. It cannot be collected by a central authority. The price system is the only known way to use that dispersed knowledge without collecting it first.
Hayek was not making a political argument about freedom or liberty (though he had those too). He was making a practical argument about information processing. The economy is too complex for any single mind or committee to understand. The price system solves that problem by letting each person act on their own local knowledge, and communicating the results through prices.
Why This Matters Today
The information problem is not just about communist central planning in the 20th century. It happens whenever someone tries to replace local decision-making with central control.
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Rent control sets a price for housing based on what the committee thinks is fair. But the committee cannot know which neighborhoods are becoming more desirable, which buildings need maintenance, or who would be willing to pay more for a shorter commute. The price stops sending information, and the housing market breaks.
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Price caps on essential goods prevent prices from rising during a shortage. But the rising price is the signal that tells people to conserve and suppliers to find more. Without the signal, the shortage gets worse.
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Corporate planning within large companies faces the same problem. The executive team cannot know what each local manager knows about their customers, their suppliers, or their team. The more layers between the decision-makers and the people with local knowledge, the worse the decisions.
AI is not going to fix this
It is tempting to thing that artificial intelligence is, one day, going to overcome this problem. Certainly, AI can do a lot, and is likely to get more capable still. But unless it can see into the changing whims of large groups of people, it will not know what the next craze will be, where the next disaster will strike, or how tastes will change. Only individuals acting in a free market can provide that information.
The Limits of Planning
None of this means all planning is useless. Companies plan. Governments plan. Families plan. Planning is essential.
The question is what kind of planning works. Plans work when they operate on general rules (speed limits, building codes, property rights) and let individuals make specific decisions within those rules. Plans fail when they try to replace individual decisions with central directives.
The difference is between setting the rules of the game against trying to make every move for every player. The first is necessary. The second is impossible, not because of politics, but because of information.