The only way that has ever been discovered to have a lot of people cooperate together voluntarily is through the free market. And that's why it's so essential to preserving individual freedom.
Interpretation
The quote emphasizes the role of the free market in facilitating voluntary cooperation among individuals, which helps maintain personal freedom.
Milton Friedman asserts that the free market is the only proven method for large groups of people to work together out of their own volition. This voluntary cooperation is critical for ensuring and protecting individual freedoms, suggesting that government control or other systems may impede such natural collaboration.
In practice
In a speech about economic policy, one might cite this quote to advocate for a market-oriented approach.
The economic miracle that has been the United States was not produced by socialized enterprises, by government-unon-industry cartels or by centralized economic planning. It was produced by private enterprises in a profit-and-loss system. And losses were at least as important in weeding out failures, as profits in fostering successes. Let government succor failures, and we shall be headed for stagnation and decline.
Universities exist to transmit knowledge and understanding of ideas and values to students not to provide entertainment for spectators or employment for athletes.
There is no place for government to prohibit consumers from buying products the effect of which will be to harm themselves.
There is one and only one social responsibility of business - to use it resources and engage in activities designed to increase its profits so long as it stays within the rules of the game, which is to say, engages in open and free competition without deception or fraud.
The great danger to the consumer is the monopoly -whether private or governmental. His most effective protection is free competition at home and free trade throughout the world. The consumer is protected from being exploited by one seller by the existence of another seller from whom he can buy and who is eager to sell to him. Alternative sources of supply protect the consumer far more effectively than all the Ralph Naders of the world.
The strongest argument for free enterprise is that it prevents anybody from having too much power. Whether that person is a government official, a trade union official, or a business executive. If forces them to put up or shut up. They either have to deliver the goods, produce something that people are willing to pay for, are willing to buy, or else they have to go into a different business.
What someone is paid has little or no relationship to what their work is worth to society.
Firms don't just try to pay as little as possible to get the needed bodies on board; when there is unemployment, they ask themselves how wage cuts would affect the behavior of the employees. Would they quit or feel dissatisfied and work less hard on the firm's behalf if they feel that wage policies are unfair?
Having a decent share of the national wealth for the middle class is not bad for growth. It is actually useful both for equity and efficiency reasons.
In the 1940s, economics started getting highly mathematical. It was basically because economists weren't smart enough to write down models of real behavior that they started writing down models of highly rational behavior - and they kind of forgot about humans.
The accepted ideas of any period are singularly those that serve the dominant economic interest...What economists believe and teach, whether in the United States or in the Soviet Union, is rarely hostile to the institutions - the private business enterprise, the Communist Party - that reflect the dominant economic power. Not to notice this takes effort, although many succeed.
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.
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