 Referred to as left-wing market anarchists or market-oriented left-libertarians, proponents of this approach strongly affirm the classical liberal ideas of self-ownership and free markets while maintaining that taken to their logical conclusions, these ideas support anti-capitalist, anti-corporatist, anti-hierarchical, pro-labor positions in economics; anti-imperialism in foreign policy; and thoroughly liberal or radical views regarding cultural and social issues such as gender, sexuality and race.The genealogy of contemporary market-oriented left-libertarianism, sometimes labeled left-wing market anarchism, overlaps to a significant degree with that of Steiner–Vallentyne left-libertarianism as the roots of that tradition are sketched in the book "The Origins of Left-Libertarianism".Carson–Long-style left-libertarianism is rooted in 19th century mutualism and in the work of figures such as Thomas Hodgskin and the individualist anarchists Benjamin Tucker and Lysander Spooner.