Therefore the amount of socially necessary labor time determines the magnitude of the value of any article. Commodities that have the same use of labor time embodied within them have the same value. The value of the commodity values directly as the quantity, and inversely as the productiveness of the labor incorporated in it. The more labor the higher the value. The more productive labor is the less the value.
People can produce for themselves and create a use value.
A commodity is created when the person produces for others and creates social use values. Labor that is used to create a use value, or a product that satisfies human wants and needs, is useful labor. To each type of useful product there corresponds different types of useful labor. These forms of labor belong to the social division of labor. The division of labor is necessary for the production of commodities, but it does not follow, that the production of commodities is a necessary condition for the division of labor.