Economics is the study of the production, distribution, and consumption of goods and services.
Economics examines the behaviors and interactions of systems as small as households up through the global network. Because of this, Economics is often broadly divided into Microeconomics and Macroeconomics. Microeconomics studies the systems that have a small, more local impact: households, firms, and buyers/sellers. Macroeconomics studies the larger systems that have a national or global impact: inflation, unemployment, overall economic growth and fiscal policies.
Because Micro- and Macroeconomics include careful analysis of business, industry, governments, and people (consumers), economic coursework is often required in a variety of disciplines including business and political science.