The following is excerpted from Man, Economy, and State, with Power and Market, by Murray N. Rothbard (Mises Institute, 2004), pp. 1297–1327 (notes removed).   See the full text and buy the book

There are two types of ethical criticisms that can be made of the free-market system. One type is purely existential; that is, it rests on existential premises only. The other type advances conflicting ethical goals and protests that the free market does not attain these goals...

Number 1: Knowledge of Self-Interest: An Alleged Critical Assumption

This criticism of the market is more existential than ethical. It is the popular argument that laissez faire, or the free-market economy, rests its case on the crucial assumption that every individual knows his own self-interest best. Yet, it is charged, this is not true of many individuals. Therefore, the State must intervene, and the case for the free market is vitiated.

The free-market doctrine, however, does not rest on any such assumption. Like the mythical "economic man," the Perfectly Wise Individual is a straw man created by the critics of the theory, not implied by it.

First, it should be evident from our analysis of the free market and government intervention throughout this work that any argument for the free market rests on a far deeper and more complex doctrine. We cannot enter here into the many ethical and philosophical arguments for freedom. Secondly, the laissez-faire or free-market doctrine does not assume that everyone always knows his own interest best; it asserts rather that everyone should have the right to be free to pursue his own interest as he deems best.

Critics may argue that the government should force men to lose some ex ante or present utility in order to gain ex post utility later, by being compelled to pursue their own best interests.

But libertarians may well reply in rebuttal: (1) that a person's resentment at coercive interference will lower his ex post utility in any event; and (2) that the condition of freedom is a vital, necessary prerequisite for a person's "best interests" to be attained. Indeed, the only lasting way to correct a person's errors is by persuasive reasoning; force cannot do the job. As soon as the individual can evade this force, he will return to his own preferred ways.

No one, certainly, has perfect foresight into the uncertain future. But free entrepreneurs on the market are better equipped than anyone else, by incentive and by economic calculation, to foresee and satisfy the needs of the consumers.

But what if the consumers are mistaken with regard to their own interests? Obviously, they sometimes are. But several more points must be made. In the first place, every individual knows the data of his own inner self best—by the very fact that each has a separate mind and ego. Secondly, the individual, if in doubt about what his own true interests are, is free to hire and consult experts to give him advice based on their superior knowledge. The individual hires these experts and, on the market, can continuously test their helpfulness. Individuals on the market, in short, tend to patronize those experts whose advice proves most successful. Good doctors or lawyers reap rewards on the free market, while poor ones fail. But when government intervenes, the government expert acquires his revenue by compulsory levy. There is no market test of his success in teaching people their true interests. The only test is his success in acquiring the political support of the State's machinery of coercion.

Finally, the proponents of government intervention are trapped in a fatal contradiction: they assume that individuals are not competent to run their own affairs or to hire experts to advise them. And yet they also assume that these same individuals are equipped to vote for these same experts at the ballot box. We have seen that, on the contrary, while most people have a direct idea and a direct test of their own personal interests on the market, they cannot understand the complex chains of praxeological and philosophical reasoning necessary for a choice of rulers or political policies. Yet this political sphere of open demagogy is precisely the only one where the mass of individuals are deemed to be competent!

Number 2: The Problem of Immoral Choices

The utilitarian position—that government dictation is bad because no rational ethics exists, and therefore no person has a right to impose his arbitrary values on someone else—is, we believe, an inadequate one. In the first place, it will not convince those who believe in a rational ethics, who believe that there is a scientific basis for moral judgments and that they are not pure whim. And furthermore, the position involves a hidden moral assumption of its own—that A has no right to impose any arbitrary values on B. But if ends are arbitrary, is not the end "that arbitrary whims not be imposed by coercion" just as arbitrary? And suppose, further, that ranking high on A's value scale is the arbitrary whim of imposing his other values on B. Then the utilitarians cannot object and must abandon their attempt to defend individual liberty in a value-free manner. In fact, the utilitarians are helpless against the man who wants to impose his values by coercion and who persists in doing so even after the various economic consequences are pointed out to him.

The would-be dictator can be logically refuted in a completely different way, even while remaining within Wertfrei praxeological bounds. For what is the complaint of the would-be dictator against free individuals? That they act immorally in various ways. The dictator's aim, therefore, is to advance morality and combat immorality. Let us grant, for the sake of argument, that an objective morality can be arrived at. The question that must be faced, then, is: Can force advance morality? Suppose we arrive at the demonstrable conclusion that actions A, B, and C are immoral, and actions X, Y, and Z are moral. And suppose we find that Mr. Jones shows a distressing propensity to value A, B, and C highly and adopts these courses of action time and again. We are interested in transforming Mr. Jones from being an immoral person to being a moral person. How can we go about it? The statists answer: by force. We must prohibit at gunpoint Mr. Jones from doing A, B, and C. Then, at last, he will be moral. But will he? Is Jones moral because he chooses X when he is forcibly deprived of the opportunity to choose A? When Smith is confined to a prison, is he being moral because he doesn't spend his time in saloons getting drunk?

There is no sense to any concept of morality, regardless of the particular moral action one favors, if a man is not free to do the immoral as well as the moral thing. If a man is not free to choose, if he is compelled by force to do the moral thing, then, on the contrary, he is being deprived of the opportunity of being moral. He has not been permitted to weigh the alternatives, to arrive at his own conclusions, and to take his stand. If he is deprived of free choice, he is acting under the dictator's will rather than his own. (Of course, he could choose to be shot, but this is hardly an intelligible conception of free choice of alternatives. In fact, he then has only one free choice: the hegemonic one—to be shot or to obey the dictator in all things.)

Dictatorship over consumers' choices, then, can only atrophy morality rather than promote it. There is but one way that morality can spread from the enlightened to the unenlightened—and that is by rational persuasion. If A convinces B through the use of reason that his moral values are correct and B's are wrong, then B will change and adopt the moral course of his own free will. To say that this method is a slower procedure is beside the point. The point is that morality can spread only through peaceful persuasion and that the use of force can only erode and impair morality.

We have not even mentioned other facts that strengthen our argument, such as the great difficulty in enforcing dictatorial rules against people whose values clash with them. The man who prefers the immoral course and is prevented by the bayonet from acting on his preference will do his best to find ways to circumvent the prohibition—perhaps by bribing the bayoneteer. And, because this is not a treatise on ethics, we have not mentioned the libertarian ethical theory which holds that the use of coercion is itself the highest form of immorality.

Thus, we have shown that would-be dictators must necessarily fail to achieve their professed goal of advancing morality because the consequences will be precisely the opposite. It is possible, of course, that the dictators are not really sincere in stating their goal; perhaps their true purpose is to wield power over others and to prevent others from being happy. In that case, of course, praxeology can say no more about the matter, although ethics may find a good deal to say.

Number 3: The Morality of Human Nature

Still using the same principle that political rulership should be employed to the extent of the evil in man, we would then have a society in which complete political rulership of all the affairs of everybody would be called for. . . . One man would rule all. But who would serve as the dictator? However he were to be selected and affixed to the political throne, he would surely be a totally evil person, since all men are evil. And this society would then be ruled by a totally evil dictator possessed of total political power. And how, in the name of logic, could anything short of total evil be its consequence? How could it be better than having no political rulership at all in that society?

Is this argument unrealistic because, as everyone agrees, human beings are a compound, capable of both good and evil? But then, at what point in this mixture does State dictation become necessary? In fact, the libertarian would reason that the fact that human nature is a mixture of both good and evil provides its own particular argument in his favor. For if man is such a mixture, then the best societal framework is surely one in which evil is discouraged and the good encouraged. The libertarian maintains that the existence of the State apparatus provides a ready, swift channel for the exercise of evil, since the rulers of the State are thereby legitimated and can wield compulsion in ways that no one else is permitted to do. What is considered "crime" socially, is called "exercise of democratic power" when performed by an individual as a State official. The purely free market, on the other hand, eliminates all legitimated channels for the exercise of power over man.

Number 4: The Alleged Need for Equality

Economics or praxeology cannot establish