- Adam Smith is considered the father of modern economics and authored The Wealth of Nations in 1776, which argued that individuals pursuing self-interest can benefit society through free market competition.
- Economics is the social science concerned with how individuals and societies satisfy unlimited wants with limited resources and make decisions about production, distribution, and consumption.
- Microeconomics examines individual markets and behavior of firms and consumers, while macroeconomics examines a nation's total output, employment, prices, and income distribution.