The Nature of Commodities and Value
Marx begins by defining the commodity, an object produced for exchange. He distinguishes between 'use-value' (the utility of an object) and 'exchange-value' (the proportion in which it can be traded for other items). According to the labor theory of value, the exchange value of a commodity is determined by the amount of socially necessary labor time required to produce it. This section is crucial for understanding how Marx views the underlying mechanics of market prices.