 Capitalist economic relations are often defended by saying that they are the result of free choices by consenting adults. Wage workers are not slaves or serfs—they have the legal right to refuse to work for capitalists. But socialists reply that the relationship between capitalists and workers actually involves domination. Workers are inappropriately subject to the will of capitalists in the shaping of the terms on which they work (both in the spheres of exchange and production, and within the broader political process). Workers’ consent to their exploitation is given in circumstances of deep vulnerability and asymmetry of power. According to Marx, two conditions help explain workers’ apparently free choice to enter into a nevertheless exploitative contract: (1) in capitalism (unlike in feudalism or slave societies) workers own their labor power, but (2) they do not own means of production. Because of their deprivation (2), workers have no reasonable alternative to using their entitlement (1) to sell their labor power to the capitalists—who do own the means of production (Marx 1867 [1990: 272–3]). Through labor-saving technical innovations spurred by competition, capitalism also constantly produces unemployment, which weakens the bargaining power of individual workers further. Thus, Marx says that although workers voluntarily enter into exploitative contracts, they are “compelled [to do so] by social conditions”. 