Exchange Value

n. purchasing power of a unit of currency for merchandise and services in the market

In political economy and especially Marxian economics, exchange value refers to one of four major attributes of a commodity, i.e., 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-valuean exchange valuea priceThese four concepts have a very long history in human thought, from Aristotle to David Ricardo, becoming ever more clearly distinguished as the development of commercial trade progressed. This entry focuses on Marx's summation of the results of economic thought about exchange-value.
See more at Wikipedia.org...