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United States · College BoardSyllabus
Microeconomics syllabus, dot point by dot point
Every dot point in the United States Microeconomicssyllabus, with a focused answer for each one. Click any dot point for a worked explainer, past exam questions, and links to related dot points. Written by Claude Opus 4.8, Anthropic's latest AI.
Unit 1: Basic Economic Concepts
Module overview →- Why can two parties both gain by specializing and trading, even when one is better at producing everything?Topic 1.4 Comparative Advantage and Gains from Trade: distinguish absolute from comparative advantage, calculate opportunity costs from output or input data, identify who should specialize, and find mutually beneficial terms of trade.11 min answer →
- How do rational decision-makers weigh costs against benefits, and why does the comparison happen at the margin?Topic 1.5 Cost-Benefit Analysis: explain rational decision-making by comparing marginal benefit and marginal cost, distinguish explicit from implicit costs, and find the optimal quantity where marginal benefit equals marginal cost.10 min answer →
- How does a consumer with a fixed budget choose the combination of goods that gives the most satisfaction?Topic 1.6 Marginal Analysis and Consumer Choice: explain diminishing marginal utility, and use the utility-maximizing rule (equal marginal utility per dollar) to find the consumption bundle that maximizes total utility given a budget.10 min answer →
- How can a single curve show trade-offs, opportunity cost, efficiency, and economic growth at the same time?Topic 1.3 The Production Possibilities Curve: draw and interpret the PPC, calculate opportunity cost from it, explain its shape in terms of constant versus increasing opportunity cost, and show efficiency, unattainable points, and growth.11 min answer →
- How does a society decide what to produce, how to produce it, and for whom, and how do different economic systems answer those questions?Topic 1.2 Resource Allocation and Economic Systems: identify the three basic economic questions, and explain how command, market, and mixed economies use planning, prices, property rights, and incentives to allocate scarce resources.10 min answer →
- Why must every individual and society make choices, and how do scarcity and the factors of production frame those choices?Topic 1.1 Scarcity: explain how scarcity forces individuals and societies to make choices, distinguish needs from wants, identify the factors of production, and explain why every choice involves a trade-off.10 min answer →
Unit 2: Supply and Demand
Module overview →- Why does the quantity buyers want fall as price rises, and what makes the whole demand curve shift?Topic 2.1 Demand: state the law of demand, distinguish a change in quantity demanded from a change in demand, and identify the determinants that shift the demand curve.10 min answer →
- How do price controls, taxes, subsidies, and quotas change market outcomes and reduce total surplus?Topic 2.8 The Effects of Government Intervention in Markets: analyze binding price ceilings and floors, per-unit taxes and subsidies, and quantity controls, showing the resulting shortages, surpluses, tax incidence, and deadweight loss.12 min answer →
- How does opening a market to world trade change prices and surplus, and what do tariffs and quotas do?Topic 2.9 International Trade and Public Policy: analyze the effect of free trade at the world price on consumer and producer surplus, and the effect of tariffs and import quotas on prices, quantities, surplus, and deadweight loss.11 min answer →
- How do shortages and surpluses push price toward equilibrium, and what happens when one or both curves shift?Topic 2.7 Market Disequilibrium and Changes in Equilibrium: explain how shortages and surpluses arise and self-correct, predict the new equilibrium after a single shift, and handle the indeterminate cases of a double shift.10 min answer →
- How do supply and demand together set the market price, and how do we measure the benefit each side gets?Topic 2.6 Market Equilibrium and Consumer and Producer Surplus: find equilibrium price and quantity, identify consumer and producer surplus on a graph, and explain why the competitive equilibrium maximizes total surplus (allocative efficiency).11 min answer →
- How do economists measure the responsiveness of demand to income and to the prices of other goods?Topic 2.5 Other Elasticities: calculate and interpret the income elasticity of demand (normal versus inferior goods) and the cross-price elasticity of demand (substitutes versus complements).9 min answer →
- How responsive is the quantity buyers want to a change in price, and how does that responsiveness affect total revenue?Topic 2.3 Price Elasticity of Demand: calculate price elasticity of demand using the midpoint formula, classify demand as elastic, inelastic, or unit elastic, apply the total revenue test, and identify the determinants of elasticity.11 min answer →
- How responsive is the quantity producers offer to a change in price, and what makes supply more or less elastic?Topic 2.4 Price Elasticity of Supply: calculate price elasticity of supply using the midpoint formula, classify supply as elastic, inelastic, or unit elastic, and explain why time is the key determinant.10 min answer →
- Why does the quantity producers offer rise as price rises, and what makes the whole supply curve shift?Topic 2.2 Supply: state the law of supply, distinguish a change in quantity supplied from a change in supply, and identify the determinants that shift the supply curve.10 min answer →
Unit 3: Production, Cost, and the Perfect Competition Model
Module overview →- When should a firm keep producing at a loss, when should it shut down, and when does it enter or exit?Topic 3.6 Firms' Short-Run Decisions to Produce and Long-Run Decisions to Enter or Exit: apply the shut-down rule using average variable cost, and the entry and exit conditions using average total cost and economic profit.10 min answer →
- When all inputs can vary, how does long-run average cost behave, and what are economies and diseconomies of scale?Topic 3.3 Long-Run Production Costs: explain the long-run average total cost curve as an envelope of short-run curves, and identify economies of scale, diseconomies of scale, and constant returns to scale.9 min answer →
- Why does a price-taking firm earn zero economic profit in the long run, and why is perfect competition efficient?Topic 3.7 Perfect Competition: describe the characteristics of perfect competition, draw the short-run profit, loss, and break-even cases, explain the long-run zero-profit equilibrium, and show why perfect competition is efficient.12 min answer →
- What output level maximizes a firm's profit, and why is the marginal revenue equals marginal cost rule universal?Topic 3.5 Profit Maximization: explain the marginal revenue equals marginal cost rule, apply it to find the profit-maximizing output, and use the average total cost curve to measure profit or loss.10 min answer →
- How do a firm's fixed and variable costs combine into the short-run cost curves, and why are they shaped the way they are?Topic 3.2 Short-Run Production Costs: define fixed, variable, total, marginal, and average costs, calculate each from data, and explain the shapes of the short-run cost curves and how marginal cost relates to the averages.11 min answer →
- How does a firm's output change as it adds more of a variable input, and why does the extra output eventually fall?Topic 3.1 The Production Function: define total, marginal, and average product, explain the law of diminishing marginal returns, and relate the product curves to one another.10 min answer →
- Why can a business make an accounting profit yet earn zero economic profit, and what does normal profit mean?Topic 3.4 Types of Profit: distinguish accounting profit from economic profit using explicit and implicit costs, define normal profit, and explain what positive, zero, and negative economic profit signal.9 min answer →
Unit 4: Imperfect Competition
Module overview →- What separates imperfectly competitive firms from price takers, and why does market power create inefficiency?Topic 4.1 Introduction to Imperfectly Competitive Markets: compare the four market structures, explain why a price maker faces a downward-sloping demand curve with marginal revenue below price, and define barriers to entry.9 min answer →
- Why do many differentiated firms earn profit in the short run but only normal profit in the long run, with excess capacity?Topic 4.4 Monopolistic Competition: describe the structure, find short-run profit or loss, explain the long-run zero-economic-profit outcome from entry and exit, and explain excess capacity and inefficiency.10 min answer →
- How does a single seller choose price and output, and why is monopoly inefficient compared with perfect competition?Topic 4.2 Monopoly: find the monopolist's profit-maximizing price and output using marginal revenue equals marginal cost, measure profit or loss, identify the deadweight loss, and explain natural monopoly and regulation.12 min answer →
- How do a few interdependent firms behave, and how does game theory predict their choices?Topic 4.5 Oligopoly and Game Theory: describe oligopoly and interdependence, analyze a payoff matrix to find dominant strategies and Nash equilibrium, and explain collusion, cartels, and the incentive to cheat.11 min answer →
- How can a firm charge different prices to different buyers, and what does perfect price discrimination do to surplus?Topic 4.3 Price Discrimination: state the conditions for price discrimination, and analyze perfect (first-degree) price discrimination, including its effect on output, profit, consumer surplus, and deadweight loss.9 min answer →
Unit 5: Factor Markets
Module overview →- What shifts the demand for and supply of a factor like labor, and how does that change the equilibrium wage and employment?Topic 5.2 Changes in Factor Demand and Factor Supply: identify the determinants that shift factor demand and factor supply, and predict the effect on the equilibrium factor price and quantity.9 min answer →
- How is the demand for a factor like labor derived, and what does marginal revenue product tell a firm about hiring?Topic 5.1 Introduction to Factor Markets: explain that factor demand is derived demand, define and calculate marginal revenue product, and state the hiring rule that marginal revenue product equals marginal factor (resource) cost.10 min answer →
- How does a single buyer of labor set the wage and employment, and why are both lower than in a competitive market?Topic 5.4 Monopsonistic Markets: explain why a monopsonist's marginal factor cost lies above the labor supply curve, find the monopsony wage and employment, and compare them with the competitive outcome.10 min answer →
- How does a firm in a competitive factor market decide how much of each input to hire, and how does it least-cost combine inputs?Topic 5.3 Profit-Maximizing Behavior in Perfectly Competitive Factor Markets: apply the marginal revenue product equals wage rule for a wage-taking firm, and use the least-cost and profit-maximizing input combination rules across multiple factors.9 min answer →
Unit 6: Market Failure and the Role of Government
Module overview →- How can government policy reduce the inefficiency of market power, and when does intervention help rather than hurt?Topic 6.4 The Effects of Government Intervention in Different Market Structures: analyze antitrust policy, the regulation of a natural monopoly through marginal-cost and average-cost pricing, and how intervention can reduce deadweight loss when a market failure exists.10 min answer →
- How do costs and benefits that spill onto third parties cause a market to over- or under-produce, and how can policy fix it?Topic 6.2 Externalities: distinguish negative from positive externalities, show the divergence of private and social cost or benefit, identify the resulting overproduction or underproduction and deadweight loss, and explain corrective taxes and subsidies.11 min answer →
- How do economists measure income inequality, and how do tax and transfer policies change the distribution?Topic 6.5 Income and Wealth Inequality: distinguish income from wealth, measure inequality with the Lorenz curve and Gini coefficient, identify the sources of inequality, and explain how progressive taxes and transfers redistribute income.9 min answer →
- Why do free markets under-provide goods that no one can be excluded from, and how does the free-rider problem arise?Topic 6.3 Public and Private Goods: classify goods by rivalry and excludability, explain the free-rider problem for public goods, and explain why markets under-provide public goods and how government provision responds.9 min answer →
- When is a market outcome socially efficient, and what makes an outcome inefficient?Topic 6.1 Socially Efficient and Inefficient Market Outcomes: define allocative efficiency as marginal social benefit equal to marginal social cost, identify deadweight loss, and explain what causes market failure.9 min answer →