noun (used with a singular verb)
- the branch of economics dealing with particular aspects of an economy, as the price-cost relationship of a firm.
- (functioning as singular) the branch of economics concerned with particular commodities, firms, or individuals and the economic relationships between themCompare macroeconomics
n.1948, from micro- + economics. Related: Microeconomic. Economic analysis of particular components of the economy, such as the growth of a single industry or demand for a single product. (Compare macroeconomics.)