For the individual actor, “as for everyone, other people’s labor as offered for sale on the market is nothing but a factor of production. Man deals with other people’s labor in the same way that he deals with all scarce material factors of production. He appraises it according to the principles he applies in the appraisal of all other goods. The height of wage rates is determined on the market in the same way in which the prices of all commodities are determined. In this sense we may say that labor is a commodity. The emotional associations which people, under the influence of Marxism, attach to this term do not matter. It suffices to observe incidentally that the employers deal with labor as they do with commodities because the conduct of the consumers forces them to proceed in this way.”
—Ludwig von Mises, Human Action
