Introduction
Demand, Supply, and Elasticity
The prefix macro means large, indicating that macroeconomics is concerned with the study of the market system on a large scale. Macroeconomics considers the aggregate performance of all markets in the market system and is concerned with the choices made by the large subsectors of the economy—the household sector, which includes all consumers; the business sector, which includes all firms; and the government sector, which includes all government agencies.
