DEMAND-DRIVEN BUSINESS CYCLES: Business cycle instability caused by changes in one or more of the four aggregate demand expenditures on gross domestic product--consumption, investment, government purchases, and net exports. This is one of two basic types of business cycles; the other being supply-drive business cycle. Demand-driven business cycles tend to be the more common of the two types. In general, demand-driven business cycles are more responsible for short-term instability, while supply-driven business cycles tend to be more closely associated with long-run changes in the economy. See also | business cycle | aggregate demand | aggregate expenditures | gross domestic product | consumption expenditures | investment expenditures | government purchases | net exports | investment business cycle | political business cycle | stabilization policies |