Study guide on the introductory course "Principles of Microeconomics" 115 pages covering 20 subjects in microeconomics. Subjects covered include the following: Welcome to Economics, Scarcity, Demand and Supply, Labor and financial markets, Elasticity, Consumer choices, Production, costs, and Industry Structure, Perfect competition, Monopoly, Monopolistic competition and oligopoly, Monopoly and Antitrust policy, Environmental protection and negative Externalities, Positive Externalities and Public Goods, Labor Markets and Income, Poverty and Economic Inequality, Information, Risk, and Insurance, Financial markets, Public Economy, International Trade, Globalization and Protectionism