Macroeconomics is the branch of economics that studies the behavior and performance of an economy as a whole. It focuses on the aggregate changes in the economy such as unemployment, growth rate, gross domestic product and inflation.

Microeconomics is the study of individuals, households and firms' behavior in decision making and allocation of resources. It focuses on analyzing markets, market structures, the government's role when markets fail.

International Economics examines several alternative models of international trade as well as foreign exchange markets, currency/financial crisis, globalization, unfair trade practices, regional integration, and the impact of trade on economic growth.