Karl Marx introduces the concept in chapter 6 of the first volume of Capital, as follows:
"By labour-power or capacity for labour is to be understood the aggregate of … See more

Marx adapted a distinction, in Hegel's Elements of the Philosophy of Right between labour power (Arbeitskraft) and labour (Arbeit) … See more

Under capitalism, according to Marx, labour-power becomes a commodity – it is sold and bought on the market. A worker tries to sell his or her labour-power to an employer, in … See more

Labour power is a peculiar commodity, because it is an attribute of living persons, who own it themselves in their living bodies. Because they own it within themselves, they cannot permanently sell it to someone else; in that case, they would be a slave, … See more

Marx regards money-wages and salaries as the price of labour power (though workers can also be paid "in kind"), normally related to hours worked or output produced. That … See more

When labour power has been purchased and an employment contract signed, normally it is not yet paid for. First, labour power must be put to work in the production process. The employment contract is only a condition for uniting labour power with … See more

Marx himself argued that:
"The maintenance and reproduction of the working-class is, and must ever be, a necessary condition to the reproduction of capital. But the capitalist may safely leave its fulfilment to the labourer's instincts of self-preservation … See more