AP-MICRO
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AP® Microeconomics
AP Microeconomics teaches fundamental concepts of supply and demand, production theory, imperfect competition, and factor markets, enabling learners to interpret market behavior and evaluate policy impacts.
130
Minutes
63
Questions
3/5
Passing Score
$98
Exam Cost
Who Should Take This
High school juniors and seniors preparing for AP exams, as well as community‑college students seeking a solid foundation in microeconomics, will benefit. They need introductory‑level knowledge, aim to master terminology, graphs, and analytical reasoning, and plan to apply concepts in further economics coursework or related careers.
What's Covered
1
All six units of the AP Microeconomics course framework (College Board, effective 2019-present): Unit 1 Basic Economic Concepts
2
, Unit 2 Supply and Demand
3
, Unit 3 Production, Cost, and the Theory of the Firm
4
, Unit 4 Imperfect Competition
5
, Unit 5 Factor Markets
6
, Unit 6 Market Failure and the Role of Government
What's Included in AccelaStudy® AI
Adaptive Knowledge Graph
Practice Questions
Lesson Modules
Console Simulator Labs
Exam Tips & Strategy
20 Activity Formats
Course Outline
64 learning goals
1
Unit 1: Basic Economic Concepts
3 topics
Scarcity, Opportunity Cost, and the PPC
- Identify the fundamental economic concepts of scarcity, choice, and opportunity cost, and describe how these concepts underlie all economic decision-making by individuals, firms, and governments.
- Describe the production possibilities curve (PPC) and explain how it illustrates scarcity, trade-offs, opportunity cost, efficiency, underutilization, and economic growth through outward shifts.
- Explain how increasing opportunity cost (the bowed-out PPC) arises from the fact that resources are not perfectly adaptable to the production of all goods, and contrast this with constant opportunity cost.
- Analyze how comparative advantage determines the pattern of trade between two parties, calculating opportunity costs from a PPC or output/input table to identify which party should specialize in which good.
- Construct an argument using the PPC model to evaluate whether a particular economic policy—such as investment in technology or education—would promote economic growth, identifying trade-offs and opportunity costs.
Marginal Analysis and Decision-Making
- Identify the concepts of marginal benefit and marginal cost and describe the principle that rational decision-makers compare marginal benefits to marginal costs when choosing how much of an activity to undertake.
- Explain how the marginal decision rule—pursue an activity until marginal benefit equals marginal cost—applies to consumer purchasing decisions, firm production decisions, and resource allocation.
Economic Systems and the Role of Markets
- Describe the three economic systems—command, market, and mixed—and explain how each answers the fundamental questions of what to produce, how to produce, and for whom to produce.
- Explain how the circular flow model illustrates the interactions between households and firms in product and factor markets, tracing the flows of goods, services, resources, and money.
- Explain how property rights, the profit motive, and voluntary exchange provide incentives that coordinate economic activity in a market system, and describe how the absence of these features leads to inefficiency.
2
Unit 2: Supply and Demand
3 topics
Demand, Supply, and Market Equilibrium
- Identify the determinants of demand (income, tastes, prices of related goods, number of buyers, expectations) and supply (input costs, technology, number of sellers, expectations, government policies), and distinguish between a change in quantity demanded/supplied and a shift in the curve.
- Explain how market equilibrium is determined by the intersection of supply and demand, and describe how shifts in either curve cause changes in equilibrium price and quantity.
- Analyze the effects of simultaneous shifts in both supply and demand on equilibrium price and quantity, identifying cases where the direction of change in one variable is indeterminate.
- Explain how international trade affects domestic supply and demand, describing how tariffs, quotas, and free trade create winners and losers among domestic consumers, producers, and the government.
- Analyze the welfare effects of a tariff on an imported good, identifying changes in consumer surplus, producer surplus, government revenue, and deadweight loss using graphical analysis.
Elasticity
- Identify the formula for price elasticity of demand and describe the determinants of elasticity, including availability of substitutes, proportion of income spent, time horizon, and necessity versus luxury.
- Explain the relationship between price elasticity of demand and total revenue, describing how a price increase affects total revenue differently when demand is elastic, inelastic, or unit elastic.
- Explain the concepts of income elasticity of demand and cross-price elasticity of demand, and describe how each is used to classify goods as normal, inferior, substitutes, or complements.
- Identify the determinants of price elasticity of supply—including time horizon, availability of inputs, spare capacity, and production flexibility—and describe why supply tends to be more elastic in the long run.
- Analyze how the relative elasticities of supply and demand determine the distribution of an excise tax between buyers and sellers, using graphical and numerical analysis to identify the tax incidence.
Consumer and Producer Surplus, and Government Intervention
- Identify consumer surplus and producer surplus on a supply and demand graph, and describe how total economic surplus (welfare) is maximized at the competitive equilibrium.
- Explain how price ceilings (below equilibrium) and price floors (above equilibrium) create shortages and surpluses, and describe the resulting welfare effects including deadweight loss.
- Explain how excise taxes create a wedge between the price buyers pay and the price sellers receive, producing deadweight loss and transferring surplus to the government as tax revenue.
- Analyze the welfare effects of a per-unit subsidy on a market, tracing the effects on equilibrium price, quantity, consumer surplus, producer surplus, government expenditure, and deadweight loss using graphical analysis.
3
Unit 3: Production, Cost, and the Theory of the Firm
3 topics
Production and Cost Curves
- Identify the short-run cost curves—total cost (TC), total fixed cost (TFC), total variable cost (TVC), average total cost (ATC), average variable cost (AVC), average fixed cost (AFC), and marginal cost (MC)—and describe their shapes and interrelationships.
- Explain how the law of diminishing marginal returns causes the marginal cost curve to eventually rise and the marginal product curve to eventually fall, and describe the relationship between marginal cost and marginal product.
- Explain why the marginal cost curve intersects the ATC and AVC curves at their minimum points, and describe how to use these cost curves to determine a firm's profit or loss at a given price.
- Analyze the long-run average total cost (LRATC) curve and explain how economies of scale, constant returns to scale, and diseconomies of scale determine the optimal firm size in an industry.
Perfect Competition
- Identify the characteristics of a perfectly competitive market—many buyers and sellers, identical products, perfect information, free entry and exit, and price-taking behavior—and describe why the firm's demand curve is perfectly elastic.
- Explain how a perfectly competitive firm maximizes profit by producing where MR=MC, and describe the short-run outcomes of economic profit, normal profit, and economic loss, including the shut-down decision when price falls below AVC.
- Explain how free entry and exit drive the long-run adjustment process in perfect competition, resulting in zero economic profit and production at the minimum of ATC, achieving both productive and allocative efficiency.
- Analyze how a change in market demand or input costs affects a perfectly competitive industry's short-run and long-run equilibrium, tracing the adjustment process through individual firm and market-level graphs.
- Explain the concepts of productive efficiency (producing at minimum ATC) and allocative efficiency (producing where P=MC) and describe why perfect competition achieves both in long-run equilibrium.
Production Functions and Input Decisions
- Identify total product, marginal product, and average product of labor, and describe the relationship between these measures as a firm increases its use of a variable input.
- Explain how the law of diminishing marginal returns determines the shapes of the total product and marginal product curves and why this law applies only in the short run when at least one input is fixed.
- Analyze how a firm's short-run production function determines its cost structure, tracing the mathematical relationship between marginal product and marginal cost to explain why MC rises when MP falls.
4
Unit 4: Imperfect Competition
3 topics
Monopoly
- Identify the characteristics of a monopoly—single seller, unique product, high barriers to entry (legal, natural, strategic)—and describe why the monopolist's demand curve is the market demand curve.
- Explain why a monopolist's marginal revenue curve lies below its demand curve, and describe how the monopolist maximizes profit by producing where MR=MC while charging a price on the demand curve above that quantity.
- Analyze the inefficiency of monopoly by comparing monopoly output and price to the perfectly competitive benchmark, identifying the deadweight loss and the transfer of surplus from consumers to the monopolist.
- Analyze how a natural monopoly arises when the LRATC is declining over the relevant range of market demand, and evaluate government options—including marginal cost pricing, average cost pricing, and lump-sum subsidies—for regulating natural monopolies.
- Explain how price discrimination allows a monopolist to capture additional consumer surplus by charging different prices to different consumers or for different units, and describe the conditions necessary for successful price discrimination.
Monopolistic Competition
- Identify the characteristics of monopolistic competition—many sellers, differentiated products, low barriers to entry, non-price competition—and describe how product differentiation gives each firm a downward-sloping demand curve.
- Explain the short-run and long-run equilibrium of a monopolistically competitive firm, describing how free entry eliminates economic profits in the long run while excess capacity and a price above marginal cost persist.
- Analyze whether the inefficiency of monopolistic competition (excess capacity and markup) is an acceptable trade-off for the product variety and innovation that differentiation provides, evaluating the welfare implications.
Oligopoly and Game Theory
- Identify the characteristics of oligopoly—few dominant sellers, high barriers to entry, mutual interdependence, and strategic behavior—and describe the difference between collusive and non-collusive oligopoly outcomes.
- Explain how a payoff matrix represents strategic interactions between oligopolistic firms and how the Nash equilibrium and dominant strategy concepts predict outcomes such as the prisoners' dilemma.
- Analyze why cartels and collusive agreements tend to be unstable, using game theory to explain the incentive for individual firms to cheat on collusive agreements and the conditions that facilitate or undermine collusion.
- Evaluate the relative efficiency of the four market structures—perfect competition, monopolistic competition, oligopoly, and monopoly—comparing them on price, output, profit, productive efficiency, allocative efficiency, and dynamic efficiency.
5
Unit 5: Factor Markets
3 topics
Labor Markets and Wage Determination
- Identify the concept of derived demand and explain why the demand for labor depends on the marginal revenue product (MRP) of workers, describing the profit-maximizing hiring rule MRP=MRC.
- Explain how wage rates are determined in a perfectly competitive labor market by the intersection of market labor supply and market labor demand, and describe the factors that shift each curve.
- Analyze how monopsony power in the labor market leads to a wage below the competitive equilibrium wage, reduced employment, and deadweight loss, comparing monopsony outcomes to perfectly competitive outcomes graphically.
- Analyze the effects of labor unions and minimum wage laws on wage rates, employment, and economic surplus in both competitive and monopsonistic labor markets.
Income Distribution and Factor Payments
- Describe how marginal productivity theory explains the distribution of income among the factors of production—land, labor, capital, and entrepreneurship—and the payments each receives (rent, wages, interest, profit).
- Evaluate whether the marginal productivity theory of income distribution produces just outcomes, constructing an argument that considers human capital differences, market power, discrimination, and inherited wealth as factors that cause actual incomes to deviate from marginal product.
Capital and Land Markets
- Explain how interest rates are determined by the supply of and demand for loanable funds, and describe how firms use the interest rate to evaluate whether a capital investment is profitable.
- Explain how the present value concept allows firms and individuals to compare costs and benefits that occur at different points in time, and describe how the discount rate affects investment decisions.
6
Unit 6: Market Failure and the Role of Government
2 topics
Externalities
- Identify positive and negative externalities in production and consumption, and describe how externalities cause the private market outcome to differ from the socially optimal outcome.
- Explain how negative externalities lead to overproduction and positive externalities lead to underproduction relative to the socially efficient quantity, using marginal social cost and marginal social benefit curves.
- Analyze how government policies—including Pigouvian taxes, subsidies, cap-and-trade systems, and command-and-control regulation—can correct externalities and move the market toward the socially optimal outcome.
- Explain how the Coase theorem suggests that private bargaining can resolve externalities when property rights are well-defined and transaction costs are low, and describe the conditions that limit the theorem's applicability.
Public Goods, Common Resources, and Market Failures
- Identify the four types of goods based on excludability and rivalry—private goods, public goods, common resources, and club goods—and describe why public goods and common resources present market failure problems.
- Explain how the free-rider problem prevents private markets from providing the efficient quantity of public goods and how the tragedy of the commons leads to overuse and depletion of common resources.
- Analyze how asymmetric information—including moral hazard and adverse selection—leads to market failure in insurance, credit, and labor markets, and evaluate the effectiveness of policy responses such as mandates and disclosure requirements.
- Evaluate whether market-based solutions or government intervention more effectively address a specific market failure scenario, constructing an argument that weighs efficiency gains against government failure, rent-seeking, and unintended consequences.
Scope
Included Topics
- All six units of the AP Microeconomics course framework (College Board, effective 2019-present): Unit 1 Basic Economic Concepts (15-20%), Unit 2 Supply and Demand (20-25%), Unit 3 Production, Cost, and the Theory of the Firm (15-25%), Unit 4 Imperfect Competition (15-25%), Unit 5 Factor Markets (10-18%), Unit 6 Market Failure and the Role of Government (8-14%).
- Core microeconomic models and graphs: production possibilities curve, supply and demand with consumer and producer surplus, cost curves (MC, ATC, AVC, AFC), revenue curves (MR, AR), perfect competition short-run and long-run equilibrium, monopoly, monopolistic competition, oligopoly with game theory, monopsony, and factor market diagrams.
- Market analysis including price elasticity of demand and supply, income elasticity, cross-price elasticity, price ceilings and floors, excise taxes and subsidies, deadweight loss, and total revenue analysis.
- Firm behavior and profit maximization using the MR=MC rule across all market structures, with analysis of productive and allocative efficiency, long-run adjustment, and the role of barriers to entry.
- Factor markets including labor supply and demand, marginal revenue product, wage determination under perfect and imperfect competition, and derived demand.
- Market failure analysis including externalities, public goods, common resources, asymmetric information, and government intervention through taxes, subsidies, regulation, and antitrust policy.
- Exam-aligned content including 60 multiple-choice questions requiring graph interpretation and economic reasoning, and three free-response questions involving graphical analysis and policy evaluation.
Not Covered
- Macroeconomic theory (aggregate supply and demand, fiscal and monetary policy, international trade) covered by the separate AP Macroeconomics exam.
- Advanced mathematical economics, calculus-based optimization, and econometric methods beyond the AP Microeconomics framework.
- Behavioral economics, experimental economics, and heterodox economic theories not tested on the AP Microeconomics exam.
- Current market data, specific company financial statements, and real-time price information not incorporated into the stable exam framework.
Official Exam Page
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