Controversies Within Libertarianism - Philosophy - Ethics

Ethics

Main articles: Consequentialist libertarianism and Natural-rights libertarianism See also: Non-aggression principle

There are broadly two different types of libertarianism which are based on ethical doctrines: "consequentialist libertarianism" and "natural rights libertarianism" (or "deontological libertarianism"). Deontological libertarians have the view that natural rights exist, and from there argue that initiation of force and fraud should never take place. Natural rights libertarianism may include both right-libertarianism and left-libertarianism. Consequentialist libertarians argue that a free market and strong private property rights bring about beneficial consequences, such as wealth creation or efficiency, rather than subscribing to a theory of rights or justice. There are hybrid forms of libertarianism that combine deontological and consequentialist reasoning.

Contractarian libertarianism holds that any legitimate authority of government derives not from the consent of the governed, but from contract or mutual agreement, though this can be seen as reducible to consequentialism or deontologism depending on what grounds contracts are justified. Some libertarian socialists reject deontological and consequential approaches and use historical materialism to justify their political beliefs.