Read "Capital, Volume Three: The Process of Capitalist Production as a Whole" by Karl Marx online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
Market-Prices and Market-Values. Surplus- Profit
The capital invested in some spheres of production has a mean, or average, composition, that is, it has the same, or almost the same composition as the average social capital.