Anarcho-capitalism is a political philosophy and economic theory that advocates the elimination of centralized states in favor of self-ownership, private property and free markets. Anarcho-capitalists hold that in the absence of statute society tends to contractually self-regulate and civilize through participation in the free market which they describe as a voluntary society. Anarcho-capitalists support wage labour and believe that neither protection of person and property nor victim compensation requires a state. In a theoretical anarcho-capitalist society, the system of private property would not be enforced by the state but by private defense agencies and insurance companies selected by consumers, which would operate competitively in an open market and fulfill the roles of police and courts.
Anarcho-capitalists claim that various theorists have espoused legal philosophies similar to anarcho-capitalism. However, the first person to use the term anarcho-capitalism was Murray Rothbard, who in the mid-20th century synthesized elements from the Austrian School, classical liberalism and 19th-century American individualist anarchists Lysander Spooner and Benjamin Tucker while rejecting their labor theory of value and the norms they derived from it. Rothbard's anarcho-capitalist society would operate under a mutually agreed-upon libertarian "legal code which would be generally accepted, and which the courts would pledge themselves to follow". This "code" would recognize self-ownership, private property, contracts and tort law in keeping with the non-aggression principle.
Anarcho-capitalists are distinguished from minarchists, who advocate a night-watchman state limited to protecting individuals and their properties from foreign and domestic aggression; and from anarchists, who support personal property and oppose private ownership of the means of production, interest, profit, rent and wage slavery which they view as inherent to capitalism.


The state

Anarcho-capitalists see free-market capitalism as the basis for a free and prosperous society. Murray Rothbard, who is credited with coining the term anarcho-capitalism, said that the difference between free-market capitalism and state capitalism is the difference between "peaceful, voluntary exchange" and a collusive partnership between business and government that uses coercion to subvert the free market. As anarcho-capitalists employ the term, capitalism is not to be confused with state monopoly capitalism, crony capitalism, corporatism, or contemporary mixed economies, wherein market incentives and disincentives may be altered by state action.
Anarchists view capitalism as an inherently authoritarian and hierarchical system and seek the abolishment of private property. There is disagreement between anarchists and anarcho-capitalists as the former generally rejects anarcho-capitalism as a form of anarchism and considers anarcho-capitalism an oxymoron, while the latter holds that the abolishment of private property would require expropriation which is "counterproductive to order" and would in their opinion require a state.
Anarcho-capitalists argue that the state relies on initiating force because force can be used against those who have not stolen personal property, vandalized private property, assaulted anyone, or committed fraud. Murray Rothbard argued that all government services, including defense, are inefficient because they lack a market-based pricing mechanism regulated by "the voluntary decisions of consumers purchasing services that fulfill their highest-priority needs" and by investors seeking the most profitable enterprises to invest in. Many anarcho-capitalists also argue that private defense and court agencies would have to have a good reputation in order to stay in business. Furthermore, Linda and Morris Tannehill argue that no coercive monopoly of force can arise on a truly free market and that a government's citizenry can not desert them in favor of a competent protection and defense agency.
Rothbard bases his philosophy on natural law grounds and also provides economic explanations of why he thinks anarcho-capitalism is preferable on pragmatic grounds as well. David D. Friedman says he is not an absolutist rights theorist, but is also "not a utilitarian". However, he does believe that "utilitarian arguments are usually the best way to defend libertarian views". Peter Leeson argues that "the case for anarchy derives its strength from empirical evidence, not theory". Hans-Hermann Hoppe instead uses "argumentation ethics" for his foundation of "private property anarchism", which is closer to Rothbard's natural law approach:

Rothbard used the term anarcho-capitalism to distinguish his philosophy from anarchism that opposes private property as well as to distinguish it from other forms of individualist anarchism. Other terms sometimes used for this philosophy, though not necessarily outside anarcho-capitalist circles, include:
  • Anti-state capitalism
  • Anti-state marketism
  • Capitalist anarchism
  • Free-market anarchism
  • Individualist anarchism
  • Market anarchism
  • Natural order
  • Ordered anarchy
  • Polycentric law
  • Private-law society
  • Private-property anarchy
  • Pure capitalism
  • Radical capitalism
  • Stateless capitalism
  • Stateless liberalism
  • Voluntaryism

Non-aggression principle

While the Friedmanian formulation of anarcho-capitalism is robust to the presence of violence and in fact assumes some degree of violence will occur, anarcho-capitalism as formulated by Rothbard and others holds strongly to the central libertarian nonaggression axiom:
Rothbard's defense of the self-ownership principle stems from what he believed to be his falsification of all other alternatives, namely that either a group of people can own another group of people, or the other alternative, that no single person has full ownership over one's self. Rothbard dismisses these two cases on the basis that they cannot result in a universal ethic, i.e. a just natural law that can govern all people, independent of place and time. The only alternative that remains to Rothbard is self-ownership, which he believes is both axiomatic and universal.
In general, the non-aggression axiom is described by Rothbard as a prohibition against the initiation of force, or the threat of force, against persons or property. The initiation of force is usually referred to as aggression or coercion. The difference between anarcho-capitalists and other libertarians is largely one of the degree to which they take this axiom. Minarchist libertarians, such as most people involved in libertarian political parties, would retain the state in some smaller and less invasive form, retaining at the very least public police, courts and military. However, others might give further allowance for other government programs. In contrast, anarcho-capitalists reject any level of "state intervention", defining the state as a coercive monopoly and—as the only entity in human society that derives its income from "legal aggression"—an entity that inherently violates the central axiom of libertarianism.
Some anarcho-capitalists, such as Rothbard, accept the non-aggression axiom on an intrinsic moral or natural law basis. It is in terms of the non-aggression principle that Rothbard defined anarchism, "a system which provides no legal sanction for such aggression "; and wrote that "what anarchism proposes to do, then, is to abolish the State, i.e. to abolish the regularized institution of aggressive coercion". In an interview published in the libertarian journal New Banner, Rothbard said that "capitalism is the fullest expression of anarchism, and anarchism is the fullest expression of capitalism".


Private property

Central to Rothbardian anarcho-capitalism are the concepts of self-ownership and original appropriation that combines personal and private property:

Anarcho-capitalism uses the following terms in ways that may differ from common usage or various anarchist movements.
  • Anarchism: any philosophy that opposes all forms of initiatory coercion
  • Contract: a voluntary binding agreement between persons
  • Coercion: physical force or threat of such against persons or property
  • Capitalism: economic system where the means of production are privately owned and where investments, production, distribution, income and prices are determined through the operation of a free market rather than by statutory regulation
  • Free market: a market where all decisions regarding transfer of money, goods and services are voluntary
  • Fraud: inducing one to part with something of value through the use of dishonesty
  • State: an organization that taxes and engages in regularized and institutionalized aggressive coercion
  • Voluntary: any action not influenced by coercion or fraud perpetrated by any human agency
Anarcho-capitalists advocate individual or joint ownership of the means of production and the allocation of the product of labor within the context of wage labour, regardless of what the individual needs or does not need. Original appropriation allows an individual to claim any never-before used resources, including land and by improving or otherwise using it, own it with the same "absolute right" as his own body, and retaining those rights forever, regardless if the resource is still being used by them. According to Rothbard, property can only come about through labor, therefore original appropriation of land is not legitimate by merely claiming it or building a fence around it—it is only by using land and by mixing one's labor with it that original appropriation is legitimized: "Any attempt to claim a new resource that someone does not use would have to be considered invasive of the property right of whoever the first user will turn out to be". Rothbard argues that the resource need not continue to be used in order for it to be the person's property as "for once his labor is mixed with the natural resource, it remains his owned land. His labor has been irretrievably mixed with the land, and the land is therefore his or his assigns' in perpetuity". As a practical matter, anarcho-capitalists recognize that in terms of the ownership of land there are few, if any, parcels of land left on Earth whose ownership was not at some point in time obtained in violation of the homestead principle, through "seizure by the state or put in private hands with the assistance of the state". Rothbard writes:
In Justice and Property Right, Rothbard writes that "any identifiable owner must be accorded his property". In the case of slavery, Rothbard says that in many cases "the old plantations and the heirs and descendants of the former slaves can be identified, and the reparations can become highly specific indeed". He believes slaves rightfully own any land they were forced to work on under the "homestead principle". If property is held by the state, Rothbard advocates its confiscation and "return to the private sector", writing that "any property in the hands of the State is in the hands of thieves, and should be liberated as quickly as possible". For example, he proposes that state universities be seized by the students and faculty under the homestead principle. Rothbard also supports expropriation of nominally "private property" if it is the result of state-initiated force, such as businesses who receive grants and subsidies. He proposes that businesses who receive at least 50% of their funding from the state be confiscated by the workers, writing: "What we libertarians object to, then, is not government per se but crime, what we object to is unjust or criminal property titles; what we are for is not 'private' property per se but just, innocent, non-criminal private property". Likewise, Karl Hess says that "libertarianism wants to advance principles of property but that it in no way wishes to defend, willy nilly, all property which now is called private Much of that property is stolen. Much is of dubious title. All of it is deeply intertwined with an immoral, coercive state system". By accepting an axiomatic definition of private property and property rights, anarcho-capitalists deny the legitimacy of a state on principle:

Common property

Although anarcho-capitalists are known for asserting a right to private property, some propose that non-state public or community property can also exist in an anarcho-capitalist society. For them, what is important is that it is acquired and transferred without help or hindrance from the "compulsory state". Deontological anarcho-capitalists believe that the only just and most economically beneficial way to acquire property is through voluntary trade, gift, or labor-based original appropriation, rather than through aggression or fraud.
Anarcho-capitalists state there could be cases where common property may develop in a Lockean natural rights framework. For example, a number of private businesses may arise in an area, each owning the land and buildings that they use, but the paths between them become cleared and trodden incrementally through customer and commercial movement. These thoroughfares may become valuable to the community, but according to them ownership cannot be attributed to any single person and original appropriation does not apply because many contributed the labor necessary to create them. In order to prevent it from falling to the "tragedy of the commons", anarcho-capitalists suggest transitioning from common to private property, wherein an individual would make a homesteading claim based on disuse, acquire title by assent of the community consensus, form a corporation with other involved parties, or other means.
Some vast areas, although not the scarce resources they contain such as the air, rivers, oceans, the Moon and orbital paths are considered by anarcho-capitalists as largely unownable by individuals and consider them to be property common to all. However, they see challenges stemming this idea, such as whether an individual might claim fishing rights in the area of a major shipping lane and thereby forbid passage through it.
In contrast, Hoppe's work on anarcho-capitalist theory is based on the assumption that all property is privately held, "including all streets, rivers, airports, and harbors", which forms the foundation of his views on immigration.
coined the word anarcho-capitalism

Contractual society

The society envisioned by anarcho-capitalists has been called the "contractual society", which Rothbard described as "a society based purely on voluntary action, entirely unhampered by violence or threats of violence" The system relies on contracts between individuals as the legal framework which would be enforced by private police and security forces, and private arbitrations. Benjamin Tucker accepted the use of violence as means of enforcing them.
Rothbard argues that corporations would exist in a free society as they are "simply the pooling of capital". He says limited liability for corporations could also exist through contract: "Corporations are not at all monopolistic privileges; they are free associations of individuals pooling their capital. On the purely free market, such men would simply announce to their creditors that their liability is limited to the capital specifically invested in the corporation". However, corporations created in this way would not be able to replicate the limit on liabilities arising non-contractually, such as liability in tort for environmental disasters or personal injury, which corporations currently enjoy. Rothbard himself acknowledges that "limited liability for torts is the illegitimate conferring of a special privilege".
There are limits to the right to contract under some interpretations of anarcho-capitalism. Rothbard himself argues that the right to contract is based in inalienable human rights and therefore any contract that implicitly violates those rights can be voided at will and which would, for instance, prevent a person from permanently selling himself or herself into unindentured slavery; however, Rothbard justifies the practice of child selling. Other interpretations conclude that banning such contracts would in itself be an unacceptably invasive interference in the right to contract.
Included in the right of contract is "the right to contract oneself out for employment by others". While anarchists criticize wage labour describing it as wage slavery, anarcho-capitalists view it as a consensual contract. Some anarcho-capitalists prefer to see self-employment prevail over wage labor. David D. Friedman has expressed preference for a society where "almost everyone is self-employed" and "instead of corporations there are large groups of entrepreneurs related by trade, not authority. Each sells not his time, but what his time produces".

Law and order and the use of violence

Different anarcho-capitalists propose different forms of anarcho-capitalism and one area of disagreement is in the area of law. In The Market for Liberty, Morris and Linda Tannehill object to any statutory law whatsoever. They argue that all one has to do is ask if one is aggressing against another in order to decide if an act is right or wrong. However, while also supporting a natural prohibition on force and fraud, Rothbard supports the establishment of a mutually agreed-upon centralized libertarian legal code which private courts would pledge to follow, as he presumes a high degree of convergence amongst individuals about what constitutes natural justice.
Unlike both the Tannehills and Rothbard who see an ideological commonality of ethics and morality as a requirement, David D. Friedman proposes that "the systems of law will be produced for profit on the open market, just as books and bras are produced today. There could be competition among different brands of law, just as there is competition among different brands of cars". Friedman says whether this would lead to a libertarian society "remains to be proven". He says it is a possibility that very unlibertarian laws may result, such as laws against drugs, but he thinks this would be rare. He reasons that "if the value of a law to its supporters is less than its cost to its victims, that law will not survive in an anarcho-capitalist society".
Anarcho-capitalists only accept collective defense of individual liberty insofar as such groups are formed and paid for on an explicitly voluntary basis. However, their complaint is not just that the state's defensive services are funded by taxation, but that the state assumes it is the only legitimate practitioner of physical force—that is, they believe it forcibly prevents the private sector from providing comprehensive security, such as a police, judicial and prison systems to protect individuals from aggressors. Anarcho-capitalists believe that there is nothing morally superior about the state which would grant it, but not private individuals, a right to use physical force to restrain aggressors. If competition in security provision were allowed to exist, prices would also be lower and services would be better according to anarcho-capitalists. According to Molinari: "Under a regime of liberty, the natural organization of the security industry would not be different from that of other industries". Proponents point out that private systems of justice and defense already exist, naturally forming where the market is allowed to "compensate for the failure of the state": private arbitration, security guards, neighborhood watch groups and so on. These private courts and police are sometimes referred to generically as private defense agencies.
The defense of those unable to pay for such protection might be financed by charitable organizations relying on voluntary donation rather than by state institutions relying on taxation, or by cooperative self-help by groups of individuals.
Edward Stringham argues that private adjudication of disputes could enable the market to internalize externalities and provide services that customers desire.
and believed it is the only United States war that can be justified
Like classical liberalism and unlike anarcho-pacifism, anarcho-capitalism permits the use of force as long as it is in the defense of persons or property. The permissible extent of this defensive use of force is an arguable point among anarcho-capitalists. Retributive justice, meaning retaliatory force, is often a component of the contracts imagined for an anarcho-capitalist society. Some believe prisons or indentured servitude would be justifiable institutions to deal with those who violate anarcho-capitalist property relations while others believe exile or forced restitution are sufficient.
Bruce L. Benson argues that legal codes may impose punitive damages for intentional torts in the interest of deterring crime. For instance, a thief who breaks into a house by picking a lock and is caught before taking anything would still owe the victim for violating the sanctity of his property rights. Benson opines that despite the lack of objectively measurable losses in such cases, "standardized rules that are generally perceived to be fair by members of the community would, in all likelihood, be established through precedent, allowing judgments to specify payments that are reasonably appropriate for most criminal offenses". The Tannehills raise a similar example, noting that a bank robber who had an attack of conscience and returned the money would still owe reparations for endangering the employees' and customers' lives and safety, in addition to the costs of the defense agency answering the teller's call for help. However, the robber's loss of reputation would be even more damaging. Specialized companies would list aggressors so that anyone wishing to do business with a man could first check his record. The bank robber would find insurance companies listing him as a very poor risk and other firms would be reluctant to enter into contracts with him.
In the context of revolution, Rothbard states that the American Revolutionary War was the only war involving the United States that could be justified. Some anarcho-capitalists, such as Samuel Edward Konkin III, feel that violent revolution is counter-productive and prefer voluntary forms of economic secession to the extent possible.
Anarcho-capitalist Matthew O'Keeffe proposes a form of a restitution system of justice in which the right to restitution created by the violation of the victims' property could be homesteaded by bounty hunters that would bring criminals to justice, thus creating the incentive for people to work defending the rights of victims that otherwise would not be able to pay for the service.


The two principal moral approaches to anarcho-capitalism differ in regard to whether anarcho-capitalist society is justified on deontological or consequentialist ethics, or both. Natural-law anarcho-capitalism holds that a universal system of rights can be derived from natural law. Some other anarcho-capitalists do not rely upon the idea of natural rights, but instead present economic justifications for a free-market capitalist society. Such a latter approach has been offered by David D. Friedman in The Machinery of Freedom. Unlike other anarcho-capitalists, most notably Rothbard, Friedman has never tried to deny the theoretical cogency of the neoclassical literature on "market failure", but openly applies the theory to both market and government institutions to compare the net result, nor has he been inclined to attack economic efficiency as a normative benchmark.
Kosanke sees such a debate as irrelevant since in the absence of statutory law the non-aggression principle is naturally enforced because individuals are automatically held accountable for their actions via tort and contract law. Communities of sovereign individuals naturally expel aggressors in the same way that ethical business practices are naturally required among competing businesses that are subject to the discipline of the marketplace. For him, the only thing that needs to be debated is the nature of the contractual mechanism that abolishes the state, or prevents it from coming into existence where new communities form.

Anarchism and anarcho-capitalism

In both its social and individualist forms, anarchism is usually considered a radical left-wing and anti-capitalist ideology that promotes socialist economic theories such as collectivism, communism, syndicalism and mutualism. Anarchists believe capitalism is incompatible with social and economic equality and therefore do not recognize anarcho-capitalism as an anarchist school of thought. In particular, they argue that capitalist transactions are not voluntary and that maintaining the class structure of a capitalist society requires coercion, which is incompatible with an anarchist society.
Rothbard maintains that anarcho-capitalism is the only true form of anarchism—the only form of anarchism that could possibly exist in reality as he argues that any other form presupposes an authoritarian enforcement of political ideology, such as "redistribution of private property". According to this argument, the free market is simply the natural situation that would result from people being free from authority and entails the establishment of all voluntary associations in society, such as cooperatives, non-profit organizations, businesses and so on. Moreover, anarcho-capitalists as well as classical liberal minarchists argue that the application of anarchist ideals as advocated by what they term left-wing anarchists would require an authoritarian body of some sort to impose it. Based on their understanding of anarchism, in order to forcefully prevent people from accumulating capital, which they believe is a goal of those anarchists, there would necessarily be a redistributive organization of some sort which would have the authority to in essence exact a tax and re-allocate the resulting resources to a larger group of people. They conclude that this body would inherently have political power and would be nothing short of a state. The difference between such an arrangement and an anarcho-capitalist system is what anarcho-capitalists see as the voluntary nature of organization within anarcho-capitalism contrasted with a centralized ideology and a paired enforcement mechanism which they believe would be necessary under a "coercively" egalitarian-anarchist system.
Albert Meltzer says that anarcho-capitalism simply cannot be anarchism because capitalism and the state are inextricably interlinked and because capitalism exhibits domineering hierarchical structures such as that between an employer and an employee. Anna Morgenstern approaches this topic from the opposite perspective, saying that anarcho-capitalists are not really capitalists because "mass concentration of capital is impossible" without the state.


Classical liberalism

argued in his essay The Production of Security: "No government should have the right to prevent another government from going into competition with it, or to require consumers of security to come exclusively to it for this commodity". Molinari and this new type of anti-state liberal grounded their reasoning on liberal ideals and classical economics. Historian and libertarian Ralph Raico argues that what these liberal philosophers "had come up with was a form of individualist anarchism, or, as it would be called today, anarcho-capitalism or market anarchism". Unlike the liberalism of Locke, which saw the state as evolving from society, the anti-state liberals saw a fundamental conflict between the voluntary interactions of people, i.e. society; and the institutions of force, i.e. the state. This society vs. state idea was expressed in various ways: natural society vs. artificial society, liberty vs. authority, society of contract vs. society of authority and industrial society vs. militant society, just to name a few. The anti-state liberal tradition in Europe and the United States continued after Molinari in the early writings of Herbert Spencer as well as in thinkers such as Paul Émile de Puydt and Auberon Herbert.

19th-century individualist anarchism in the United States

Rothbard said he was influenced by the work of the 19th-century American individualist anarchists. In the winter of 1949, influenced by several 19th century individualists anarchists, Rothbard decided to reject minimal state laissez-faire and embrace individualist anarchism. In 1965, he said: "Lysander Spooner and Benjamin R. Tucker were unsurpassed as political philosophers and nothing is more needed today than a revival and development of the largely forgotten legacy they left to political philosophy". He thought they had a faulty understanding of economics as the 19th century individualists had a labor theory of value as influenced by the classical economists and Rothbard was a student of Austrian economics which does not agree with the labor theory of value. He sought to meld 19th-century American individualists' advocacy of free markets and private defense with the principles of Austrian economics: "There is, in the body of thought known as 'Austrian economics', a scientific explanation of the workings of the free market which individualist anarchists could easily incorporate into their political and social Weltanschauung". He held that the economic consequences of the political system they advocate would not result in an economy with people being paid in proportion to labor amounts, nor would profit and interest disappear as they expected. Tucker thought that unregulated banking and money issuance would cause increases in the money supply so that interest rates would drop to zero or near to it.
Rothbard disagreed with this as he explains in The Spooner-Tucker Doctrine: An Economist's View. He says that first of all Tucker was wrong to think that that would cause the money supply to increase because he says that the money supply in a free market would be self-regulating. If it were not, then inflation would occur so it is not necessarily desirable to increase the money supply in the first place. Secondly, he says that Tucker is wrong to think that interest would disappear regardless because people in general do not wish to lend their money to others without compensation so there is no reason why this would change just because banking was unregulated. Tucker held a labor theory of value and as a result he thought that in a free market people would be paid in proportion to how much labor they exerted and that if they were not then exploitation or "usury" was taking place. As he explains in State Socialism and Anarchism, his theory was that unregulated banking would cause more money to be available and that this would allow proliferation of new businesses, which would in turn raise demand for labor. This led him to believe that the labor theory of value would be vindicated and equal amounts of labor would receive equal pay. As an Austrian economist, Rothbard did not agree with the labor theory and believed that prices of goods and services are proportional to marginal utility rather than to labor amounts in the free market. He did not think that there was anything exploitative about people receiving an income according to how much buyers of their services value their labor or what that labor produces.
Of particular importance to anarcho-capitalists and Tucker and Spooner are the ideas of "sovereignty of the individual", a market economy and the opposition to collectivism. A defining point upon which they agree is that defense of liberty and property should be provided in the free market rather than by the state. Tucker said: "efense is a service like any other service; that it is labor both useful and desired, and therefore an economic commodity subject to the law of supply and demand; that in a free market this commodity would be furnished at the cost of production; that, competition prevailing, patronage would go to those who furnished the best article at the lowest price; that the production and sale of this commodity are now monopolized by the State; and that the State, like almost all monopolists, charges exorbitant prices".

Historical precedents

Several libertarians have discussed historical precedents of what they believe were examples of anarcho-capitalism.

Free cities of medieval Europe

Economist and libertarian scholar Bryan Caplan considers the free cities of medieval Europe as examples of "anarchist" or "nearly anarchistic" societies:

Medieval Iceland

According to the libertarian theorist David D. Friedman: "Medieval Icelandic institutions have several peculiar and interesting characteristics; they might almost have been invented by a mad economist to test the lengths to which market systems could supplant government in its most fundamental functions". While not directly labeling it anarcho-capitalist, he argues that the legal system of the Icelandic Commonwealth comes close to being a real-world anarcho-capitalist legal system because while there was a single legal system, enforcement of law was entirely private and highly capitalist; and so it provides some evidence of how such a society would function. "Even where the Icelandic legal system recognized an essentially 'public' offense, it dealt with it by giving some individual the right to pursue the case and collect the resulting fine, thus fitting it into an essentially private system". Commenting on its political structure, libertarian scholar Roderick Long says:
Long suggests that the system of free contract between farmers and chieftains was threatened when harassment from Norwegian kings that began around AD 1000 forced the people of Iceland to accept Christianity as the national religion, which paved the way for the introduction of a compulsory tax in AD 1096 which was to be paid to the local chieftain who owned a churchstead. This, he believes, gave an unfair advantage to some chieftains who at least in part did not need to rely upon the voluntary support of their clients in order to receive some income. This gradually lead to the concentration of power in the hands of a few big chieftains, enabling them to restrict competition and eventually establish effective monopolies. Although the Commonwealth was politically stable for over three centuries, Long suggests that the downfall of the Icelandic system was brought about "not through having too much privatization, but through having too little". He says:

American Old West

According to Terry L. Anderson and P. J. Hill, the Old West in the United States in the period of 1830 to 1900 was similar to anarcho-capitalism in that "private agencies provided the necessary basis for an orderly society in which property was protected and conflicts were resolved" and that the common popular perception that the Old West was chaotic with little respect for property rights is incorrect. Since squatters had no claim to western lands under federal law, extra-legal organizations formed to fill the void. Benson explains:
According to Anderson, "efining anarcho-capitalist to mean minimal government with property rights developed from the bottom up, the western frontier was anarcho-capitalistic. People on the frontier invented institutions that fit the resource constraints they faced".

Gaelic Ireland

In his work For a New Liberty, Murray Rothbard has claimed ancient Gaelic Ireland as an example of nearly anarcho-capitalist society. In his depiction, citing the work of Professor Joseph Peden, the basic political unit of ancient Ireland was the tuath, which is portrayed as "a body of persons voluntarily united for socially beneficial purposes" with its territorial claim being limited to "the sum total of the landed properties of its members". Civil disputes were settled by private arbiters called "brehons" and the compensation to be paid to the wronged party was insured through voluntary surety relationships. Commenting on the "kings" of tuaths, Rothbard states:

Law merchant, admiralty law and early common law

Some libertarian historians have cited law merchant, admiralty law and early common law as examples of anarcho-capitalism. In his work Power and Market, Rothbard states:

Somalia from 1991 to 2006

Economist Alex Tabarrok claimed that Somalia in its stateless period provided a "unique test of the theory of anarchy", in some aspects near of that espoused by anarcho-capitalists David D. Friedman and Murray Rothbard. Nonetheless, many anarcho-capitalists argue that Somalia was not an anarchist society.


State, justice and defense

Many anarchists like Brian Morris argue that anarcho-capitalism does not in fact get rid of the state. He says that anarcho-capitalists "simply replaced the state with private security firms, and can hardly be described as anarchists as the term is normally understood". As anarchist Peter Sabatini notes:
Similarly, Bob Black argues that an anarcho-capitalist wants to "abolish the state to his own satisfaction by calling it something else". He states that they do not denounce what the state does, they just "object to who's doing it". It has also been argued that anarcho-capitalism dissolves into city states.
Some critics argue that anarcho-capitalism turns justice into a commodity as private defense and court firms would favour those who pay more for their services. Randall G. Holcombe argues that defense agencies could form cartels and oppress people without fear of competition. Philosopher Albert Meltzer argued that since anarcho-capitalism promotes the idea of private armies, it actually supports a "limited State". He contends that it "is only possible to conceive of Anarchism which is free, communistic and offering no economic necessity for repression of countering it".
Robert Nozick argues that a competitive legal system would evolve toward a monopoly government—even without violating individuals rights in the process. In Anarchy, State, and Utopia, Nozick argues that an anarcho-capitalist society would inevitably transform into a minarchist state through the eventual emergence of a monopolistic private defense and judicial agency that no longer faces competition. He argues that anarcho-capitalism results in an unstable system that would not endure in the real world. While anarcho-capitalists such as Roy Childs and Murray Rothbard have rejected Nozick's arguments, John Jefferson actually advocates Nozick's argument and states that such events would best operate in laissez-faire. Paul Birch argues that legal disputes involving several jurisdictions and different legal systems will be too complex and costly, therefore the largest private protection business in a territory will develop into a natural monopoly. Robert Ellickson states that anarcho-capitalists "by imagining a stable system of competing private associations, ignore both the inevitability of territorial monopolists in governance, and the importance of institutions to constrain those monopolists' abuses".

Rights and freedom

are rights that oblige either action or inaction. Anarcho-capitalists believe that negative rights should be recognized as legitimate, but positive rights should be rejected as an intrusion. Some critics reject the distinction between positive and negative rights. Peter Marshall also states that the anarcho-capitalist definition of freedom is entirely negative and that it cannot guarantee the positive freedom of individual autonomy and independence.
About anarcho-capitalism, Noam Chomsky says:

Economics and property

Most anarchists argue that certain capitalist transactions are not voluntary and that maintaining the class structure of a capitalist society requires coercion, which violates anarchist principles. David Graeber noted his skepticism about anarcho-capitalism along the same lines:
Some critics argue that the anarcho-capitalist concept of voluntary choice ignores constraints due to both human and non-human factors, such as the need for food and shelter, and active restriction of both used and unused resources by those enforcing property claims. For instance, if a person requires employment in order to feed and house himself, the employer–employee relationship could be considered involuntary. Another criticism is that employment is involuntary because the economic system that makes it necessary for some individuals to serve others is supported by the enforcement of coercive private property relations.
Some philosophies view any ownership claims on land and natural resources as immoral and illegitimate.
Objectivist philosopher Harry Binswanger criticizes anarcho-capitalism arguing that "capitalism requires government", questioning who or what would enforce treaties and contracts.
Some right libertarian critics of anarcho-capitalism who support the full privatization of capital, such as geolibertarians, argue that land and the raw materials of nature remain a distinct factor of production and cannot be justly converted to private property because they are not products of human labor. Some socialists, including other market anarchists such as mutualists, adamantly oppose absentee ownership. Anarcho-capitalists have strong abandonment criteria – one maintains ownership until one agrees to trade or gift it. Anti-state critics of this view tend to have comparatively weak abandonment criteria; for example, one loses ownership when one stops personally occupying and using it. Furthermore, the idea of perpetually binding original appropriation is anathema to socialism and traditional schools of anarchism as well as to any moral or economic philosophy that takes equal natural rights to land and the Earth's resources as a premise.



The following is a partial list of notable nonfiction works discussing anarcho-capitalism.
Anarcho-capitalism has been examined in and influenced by certain works of literature, particularly science fiction. One of the earliest and influential works is Robert A. Heinlein's 1966 novel The Moon Is a Harsh Mistress in which a penal colony on the Moon revolts against the rule of Earth, creating a society based on what the author terms "rational anarchism".
Sharper Security: A Sovereign Security Company Novel, part of a series by Thomas Sewell, is "set a couple of decades into the near-future with a liberty view of society based on individual choice and free market economics" and features a society where individuals hire a security company to protect and insure them from crime. The security companies are sovereign, but customers are free to switch between them. They behave as a combination of insurance/underwriting and para-military police forces. Anarcho-capitalist themes abound, including an exploration of not honoring sovereign immunity, privately owned road systems, a laissez-faire market and competing currencies.
Sandy Sandfort's, Scott Bieser's and Lee Oaks's Webcomic Escape from Terra examines a market anarchy based on Ceres and its interaction with the aggressive statist society Terra.