Economic expansion

An economic expansion is an upturn in the level of economic activity and of the goods and services available. It is a finite period of growth, often measured by a rise in real GDP, that marks a reversal from a previous period, for example, while recovering from a recession. The explanation of fluctuations in aggregate economic activity between expansions and contractions ("booms" and "busts" within the "business cycle") is one of the primary concerns of macroeconomics.