Anarcho-capitalism is a political philosophy and economic theory that advocates the elimination of centralized states in favor of a system of private property enforced by private agencies, free markets and the right-libertarian interpretation of self-ownership, which extends the concept to include control of private property as part of the self. In the absence of statute, anarcho-capitalists hold that society tends to contractually self-regulate and civilize through participation in the free market which they describe as a voluntary society. In a theoretical anarcho-capitalist society, the system of private property would still exist and be enforced by private defense agencies and insurance companies selected by customers which would operate competitively in an open market and fulfill the roles of courts and the police. Anarcho-capitalists claim that various theorists have espoused legal philosophies similar to anarcho-capitalism. However, anarcho-capitalism was developed in the 20th century and the first person to use the term anarcho-capitalism was Murray Rothbard. Rothbard synthesized elements from the Austrian School, classical liberalism and 19th-century American individualist anarchists and mutualists Lysander Spooner and Benjamin Tucker while rejecting their labor theory of value and the anti-capitalist and socialist norms they derived from it. Rothbard's anarcho-capitalist society would operate under a mutually agreed-upon "legal code which would be generally accepted, and which the courts would pledge themselves to follow". This legal code would recognize contracts, private property, self-ownership and tort law in keeping with the non-aggression principle.
