When people complain about capitalism they always seem to focus on the ultra rich, or the very top of the financial system, and the worst excesses they can find.
But capitalism in that regard is a victim of its own success, because it actually works so well that we don’t even see it working.
When you go into a grocery store and the food you want is there on the shelf when you want it, that’s capitalism. That food got on the shelf through an intricate supply chain that ultimately had many thousands of people cooperating on thousands of tasks, all of which culminated in a box of cereal landing on a store shelf just when people needed it.
Multiply that by the millions of goods and services we consume every day, the vast majority of which are delivered efficiently at a price just about the marginal cost of production.
The reason other systems fail to do this is that they rely on centralized planning and control, and that is a grossly inefficient way to run an economy. Central planners simply don’t have the information needed to coordinate all the various factors of production. Capitalism succeeds because it pushes decision-making to the bottom layers of the economy, where all the information is about what people really need and and what it takes to build things.
Another reason capitalism works is because the price system abstracts away everything unimportant to a transaction, giving us only the information we need to make sound economic decisions. The process of bidding for goods and services creates information about relative supply and demand, which is then used by producers to determine what and how much to make.
A large company can have a supply chain of 5000 different suppliers. Each one of those suppliers has its own supply chains. Each one of those connections contains information - information painstakingly extracted through trial and error an innovation. The information was created becuse the people involved in production have a strong incentive to control costs and quality. The complexity of a complete supply chain for even something as simple as a pencil is almost unfathomable, and it’s certainly beyond the ability of central planners to understand and efficiently control.
Imagine you are a central planner, and your statisticians come to you and say, “There is a shortage of hammers. We need to produce more.” So you dutifully sign the order to ramp up hammer production at your nationalized hammer factories. But then the hammer factories need more steel. So your order goes unfulfilled. Once you find out there’s a steel shortage, you order more steel. But that creates a shortage of steel for vehicles, which are also in demand. So you order more steel manufacturing. Oops. We’re short of mining equipment now. So you order more mining equipment. Now more tires are being used, so you are short of tires. You order more, which creates a rubber shortage… And to make matters worse, at every point of decision making the people involved have no skin in the game since it’s not their money and it’s not their hammer.
Capitalist solves this by letting the entire system calculate the relative needs of goods and services. People need more hammers, so the price of hammers goes up. This in turn stimulates the production of hammers. The extra demand for steel increases steel prices, which lowers demand for other goods made of steel and stimulates production of more steel. And so it goes. A shock to the system or a rapid change in demand causes waves of information to pulsate throughout millions of connections, which then modify their own behavior accordingly.
A capitalist economy can be thought of as a massively parallel supercomputer, with money flows being the ‘information bus’. That’s why it’s the best system we have for coordinating the economic activities of a nation.
That doesn’t mean it always works, and we need to be aware of market failures when they happen and correct for them. It also doesn’t mean that everyone will come out ahead, which is why we need a social safety net. But the key to modifying capitalism for social justice purposes is to make sure you provide that safety net and fix those failures with minimal impact on the functioning of the capitalist system overall. Because if you get rid of capitalism, none of the alternatives will result in anything but misery.