Adam Smith called labor the real measure of value and noted that masters combine everywhere while the law forbade workers to. Ricardo made distribution the central question and Malthus set a subsistence floor, then Karl Marx took their tools to build his indictment: labor power as a commodity, surplus value, alienation and the reserve army of labor. The episode gives the theory a fair hearing.
Scholars divide on whether Smith held a labor theory of value at all, and on how to read Marx's predictions about living standards. The transformation problem, how representative Engels's Manchester was, and the origin of the iron law are also argued.



