What is perfect competition?
What is a monopoly?
What is an oligopoly?
What is monopolistic competition?
What are the three basic economic questions every society must answer?
What is a free market (capitalist) economy?
What is a command (planned) economy?
What is opportunity cost?
What is scarcity?
What is Adam Smith's 'invisible hand'?
Hint: From The Wealth of Nations (1776)