Left-libertarianism
Left-libertarianism (or left-wing libertarianism) names several related, but distinct approaches to political and social theory which stress both individual freedom and social equality.
In its classical usage, left-libertarianism is a synonym for anti-authoritarian varieties of left-wing politics, e.g. libertarian socialism, which includes anarchism and libertarian Marxism among others. Left-libertarianism can also refer to political positions associated with academic philosophers Hillel Steiner, Philippe Van Parijs and Peter Vallentyne that combine self-ownership with an egalitarian approach to natural resources.While maintaining full respect for personal property, left-libertarians are skeptical of or fully against private ownership of natural resources, arguing that neither claiming nor mixing one's labor with natural resources is enough to generate full private property rights and maintain that natural resources (raw land, oil, gold, the electromagnetic spectrum, air-space, etc.) should be held in an egalitarian manner, either unowned or owned collectively.