There is a question that keeps floating to the top of the economics subreddit. Someone posts it, it collects hundreds of upvotes, and it never quite goes away. The version making the rounds this month asks: why do companies need to raise their profit instead of just keeping it at a sustainable level?
It is a fair question. Almost everyone has wondered it. You read a headline about record profits, or a shareholder letter celebrating another year of returns, and you think: if they are already making plenty, why do they need more? Why not pick a reasonable number and stop there? Wouldn’t prices fall? Wouldn’t everyone be happier?
The question sounds like common sense. That is exactly why it deserves a careful answer. It is also the quiet engine underneath two of the loudest political fights of the last few years: the crackdown on Greedflation: What the Theory Misses and the demand for a windfall tax on bank profits. If a company can simply choose its profit, then a big profit is a choice. And a choice can be regulated, taxed, or shamed into changing.
The trouble is that profit does not work like a dial on a machine. It is not a setting. It is a moving target, and it moves for reasons that have nothing to do with greed.
Profit is the price of risk and capital.
Let us start with what profit actually is. Imagine someone with a hundred thousand dollars. They can spend it. They can leave it in a savings account. Or they can hand it to strangers who promise to build something with it - a factory, a fleet of trucks, a new medicine - and maybe give it back with interest.
That third option is an act of trust, and it carries real danger. The factory can fail. The medicine can fail its trials. The trucks can sit idle. The money can simply be gone. Most new ventures do not succeed; a large share of them return nothing at all, and the people who funded them lose what they put in.
Profit is the payment for taking that risk. It is the reward for not having consumed the money - for having let it work for other people instead. Just as interest is the price of time, profit is the price of risk and capital. When an investor puts money into a company, they are saying: I will not spend this today; instead I will trust strangers to use it, and I might lose it. Profit is what compensates that decision.
Remove the compensation and the reason to invest disappears. The money goes back into savings accounts and mattresses. The factory does not get built. The medicine does not get made. And the profits you see in the headlines? They are the just the survivors, the minority of risks taken which didn’t lose money. Behind every one of them are the ventures that returned nothing, and their losses are part of the price too.
Profit is a moving target.
Second, notice that profit cannot simply be set to a comfortable level, because it is not under the company’s control. It is under the market’s control.
Every company must earn at least a normal return on its capital - enough to keep that capital from drifting off to a better opportunity. Earn more than that, and you have what looks like a dial you could turn down. But here is the catch: an above-market profit is not a secret. It is a public announcement. Every competitor can read the same earnings report, and an above-market profit is the most reliable invitation in commerce: come and take this market from us.
That is the Aldi test. If supermarkets could simply set any price they wanted - if profit were a dial - then why does Aldi exist? Why does any discount chain exist? Because the dial is not real. The moment a grocer earns fat margins, someone else builds a leaner store next door and trades the fat margin for the whole market. Competition does the fair profit negotiation for us, and it negotiates hard.
This is why a sustainable profit in a competitive market is a contradiction in terms. A profit that stands still is a profit that is being competed away. The market is constantly pushing profit down toward the minimum needed to keep capital in the game. The only way to hold a profit comfortably above that minimum is to stop competitors from arriving - and that is a policy problem, not a business choice. When you see a company that has earned fat margins for years, you are usually looking at a company that has help keeping rivals out. The market, left alone, is the most effective profit-cutter ever invented. Competition and Co-operation are two names for the same process: firms serve you better than their rivals do, or they lose you.
The record profit is the small slice.
Third, look at what the headline number is actually measuring. The record profit is real. It is also the small slice of the pie.
When economists measure how the value created by new products and new ideas is divided, the pattern is striking. The entrepreneurs who build the thing capture about 2 percent of the value they create. The rest - the other 98 percent - goes to the people who buy it. That is The 2% Rule, and it holds across the biggest innovations of the last century. The smartphone, the streaming service, the cheap flight: the inventor gets a sliver, the customer gets nearly everything.
Walmart is the cleanest illustration. Its profit margin sits at around 2 to 3 cents on every dollar of sales - a famously thin slice. So a record profit for a company that size is a huge number and a tiny slice at the same time. The other 97 cents of every dollar went to wages, suppliers, rent, and to customers in the form of lower prices. The Walmart Question is really the question of what that thin slice buys: a company that keeps thousands of stores stocked, keeps prices low, and keeps paying the wages of the people who make it run.
When you see a record profits headline, you are looking at the 2 percent. The 98 percent is the life you live - the prices you pay, the products on the shelf, the wages of the people who made them.
The firm that stops loses.
Now the part nobody sees. A firm that decides it has enough does not simply stop growing. It stops funding research. It cancels the new line. It skips the expansion. And it loses.
The firm next door - the one that did not decide it had enough - keeps improving, keeps cutting costs, keeps building. Within a few years, the ’enough’ firm is charging more for worse products, and its customers and its best workers drift away. The company that chose sustainability is not admired for its restraint. It is overtaken by the company that kept going.
This is Creative Destruction - Why Lost Jobs Make Us Richer in miniature. The market does not reward politeness. It rewards the firm that serves people better, and it retires the firm that decided it was done. The businesses that survive are the ones that treat profit as something that must be re-earned every year, because they are right, it is.
This is the piece the just-take-a-sustainable-profit question misses. The choice is not between a greedy company and a reasonable company. The choice is between a company that keeps trying to earn more and a company that has stopped trying. The second one does not produce lower prices. It produces worse products, and eventually it produces nothing at all. The firm that stops serving you better is the firm that stops serving you.
Who pays when the return disappears?
So next time someone says a company should just accept lower profits, ask two questions.
Who decides what fair is? A profit that is fair to the investor who lost everything on a failed venture, or fair to the customer who wants the price lower, or fair to the worker who wants the wage higher? There is no number that satisfies all three, which is why nobody who proposes a fair profit can ever say what it is. They can only say that whatever the company earns, it is too much.
And who invests the money when the return disappears? The answer writes itself. Nobody. The capital that would have built the new factory stays in savings accounts. The new line never opens. The expansion is canceled. And the people who would have worked there, and the customers who would have bought from there, never find out what they were missing. The harm is invisible, which is why the argument keeps winning - the cost of a fair profit never shows up on any headline.
The people who actually help the poor are not the ones who demand that companies stop earning. They are the ones who keep building, keep competing, and keep finding ways to serve people for less. That is the argument at the heart of Who Actually Helps the Poor?, and it is the same argument here.
Profit cannot stand still, because the world does not stand still. The company that stops trying to earn more is not choosing fairness. It is choosing to lose - and its customers, its workers, and its investors lose with it. The profit that has to keep being earned is the profit that has to keep serving you. That is not a flaw in the system. It is the whole point.