In political economy and especially Marxian economics, exchange value refers to one of four major attributes of a commodity, for example, an item or service produced for, and sold on the market. The other three aspects are use value, value and price. Thus, a commodity has: a valuea use-value (or utility)an exchange valuea price (it could be an actual selling price or an imputed ideal price) These four concepts have a very long history in human thought, from Aristotle to David Ricardo, becoming… (More on Exchange-value)