Discuss the subject-matter of economics.
Economics is the study of how scarce resources must be used efficiently in order to satisy unlimited wants of individuals.
Traditionally, the subject-matter of economics has been studied under two branches i.e.,
(i) Microeconomics: This branch of economics studies the problems of individual units of an economy. Its main tools are demand and supply.
(ii) Macroeconomics: This branch of economics studies the economic problems at the level of an economy as a whole. It is concerned with determination of agrregate output and general price level in the economy. Its main tools are aggregate demand and aggregate supply.