Economic theory is conventionally divided into two parts: (a) microeconomics and (b) macroeconomics. As the names suggest, the difference hes in the leve! of aggregation at which econornic phenomena are studied. Microeconomics is concerned with the study of the individual ‘decision units’ – consumers and firms, the way in which their decisions interrelate to determine relative prices of goods and factors of production, and the quantities of these which will be bought and sold. lts ultimate aim is to understand the mechanism by which the total amount of resources possessed by society is allocated among alternative uses. The central concept in microeconomics is the market.
Reference: The Penguin Dictionary of Economics, 3rd edt.