Labour power

Labour power is the capacity to do useful work which creates value in the form of commodities. Workers sell their labour power to capitalist enterprises for a wage or a salary. As a commodity, labour power has an exchange value and a use value, like all other commodities. Its exchange value is equal to the sum total of the exchange values of all those commodities necessary to produce and reproduce the labour power of the worker and his or her family. The use value of labour power is its value creating capacity which capitalist enterprises buy and put to work as labour. However, labour power is unlike other commodities in that it creates value. During a given period it can produce more than is needed to maintain the worker during the same period. The surplus value produced is the difference between the exchange value of labour power and the use value of the labour extracted by the capitalists.

Fuerza de trabajo