Marlbridge guide to AP® Microeconomics

Unit roadmap

Units and topics exactly as numbered in the 2026–27 Course and Exam Description. Weightings are the official multiple-choice ranges. Marlbridge has written resources for 36 of 36 topics so far; the rest are planned and marked as such.

1. Unit 1: Basic Economic Concepts 12–15% of multiple choice · 6 topics

   • 1.1 Scarcity Study guideRevision notesPractice questionsTopic checklist
   • 1.2 Resource Allocation and Economic Systems Study guideRevision notesPractice questionsTopic checklist
   • 1.3 Production Possibilities Curve Study guideRevision notesPractice questionsTopic checklist
   • 1.4 Comparative Advantage and Trade Study guideRevision notesPractice questionsTopic checklist
   • 1.5 Cost-Benefit Analysis Study guideRevision notesPractice questionsTopic checklist
   • 1.6 Marginal Analysis and Consumer Choice Study guideRevision notesPractice questionsTopic checklist
   • Basic Economic Concepts: Unit Diagnostic (Microeconomics Unit 1)
   • Basic Economic Concepts: Mixed Unit Review (Microeconomics Unit 1)
2. Unit 2: Supply and Demand 20–25% of multiple choice · 9 topics

   • 2.1 Demand Study guideRevision notesPractice questionsTopic checklist
   • 2.2 Supply Study guideRevision notesPractice questionsTopic checklist
   • 2.3 Price Elasticity of Demand Study guideRevision notesPractice questionsTopic checklist
   • 2.4 Price Elasticity of Supply Study guideRevision notesPractice questionsTopic checklist
   • 2.5 Other Elasticities Study guideRevision notesPractice questionsTopic checklist
   • 2.6 Market Equilibrium and Consumer and Producer Surplus Study guideRevision notesPractice questionsTopic checklist
   • 2.7 Market Disequilibrium and Changes in Equilibrium Study guideRevision notesPractice questionsTopic checklist
   • 2.8 The Effects of Government Intervention in Markets Study guideRevision notesPractice questionsTopic checklist
   • 2.9 International Trade and Public Policy Study guideRevision notesPractice questionsTopic checklist
   • Supply and Demand: Unit Diagnostic (Microeconomics Unit 2)
   • Supply and Demand: Mixed Unit Review (Microeconomics Unit 2)
3. Unit 3: Production, Cost, and the Perfect Competition Model 22–25% of multiple choice · 7 topics

   • 3.1 The Production Function Study guideRevision notesPractice questionsTopic checklist
   • 3.2 Short-Run Production Costs Study guideRevision notesPractice questionsTopic checklist
   • 3.3 Long-Run Production Costs Study guideRevision notesPractice questionsTopic checklist
   • 3.4 Types of Profit Study guideRevision notesPractice questionsTopic checklist
   • 3.5 Profit Maximization Study guideRevision notesPractice questionsTopic checklist
   • 3.6 Firms’ Short-Run Decisions to Produce and Long-Run Decisions to Enter or Exit a Market Study guideRevision notesPractice questionsTopic checklist
   • 3.7 Perfect Competition Study guideRevision notesPractice questionsTopic checklist
   • Production, Cost and Perfect Competition: Unit Diagnostic (Microeconomics Unit 3)
   • Production, Cost and Perfect Competition: Mixed Unit Review (Microeconomics Unit 3)
4. Unit 4: Imperfect Competition 15–22% of multiple choice · 5 topics

   • 4.1 Introduction to Imperfectly Competitive Markets Study guideRevision notesPractice questionsTopic checklist
   • 4.2 Monopoly Study guideRevision notesPractice questionsTopic checklist
   • 4.3 Price Discrimination Study guideRevision notesPractice questionsTopic checklist
   • 4.4 Monopolistic Competition Study guideRevision notesPractice questionsTopic checklist
   • 4.5 Oligopoly and Game Theory Study guideRevision notesPractice questionsTopic checklist
   • Imperfect Competition: Unit Diagnostic (Microeconomics Unit 4)
   • Imperfect Competition: Mixed Unit Review (Microeconomics Unit 4)
5. Unit 5: Factor Markets 10–13% of multiple choice · 4 topics

   • 5.1 Introduction to Factor Markets Study guideRevision notesPractice questionsTopic checklist
   • 5.2 Changes in Factor Demand and Factor Supply Study guideRevision notesPractice questionsTopic checklist
   • 5.3 Profit-Maximizing Behavior in Perfectly Competitive Factor Markets Study guideRevision notesPractice questionsTopic checklist
   • 5.4 Monopsonistic Markets Study guideRevision notesPractice questionsTopic checklist
   • Factor Markets: Unit Diagnostic (Microeconomics Unit 5)
   • Factor Markets: Mixed Unit Review (Microeconomics Unit 5)
6. Unit 6: Market Failure and the Role of Government 8–13% of multiple choice · 5 topics

   • 6.1 Socially Efficient and Inefficient Market Outcomes Study guideRevision notesPractice questionsTopic checklist
   • 6.2 Externalities Study guideRevision notesPractice questionsTopic checklist
   • 6.3 Public and Private Goods Study guideRevision notesPractice questionsTopic checklist
   • 6.4 The Effects of Government Intervention in Different Market Structures Study guideRevision notesPractice questionsTopic checklist
   • 6.5 Inequality Study guideRevision notesPractice questionsTopic checklist
   • Market Failure and the Role of Government: Unit Diagnostic (Microeconomics Unit 6)
   • Market Failure and the Role of Government: Mixed Unit Review (Microeconomics Unit 6)

Exam skills

Guides that apply across every unit: what each task verb asks you to do, and how to set out answers so every step of your reasoning is visible.

• Drawing Graphs and Writing Cause-and-Effect Explanations: Exam Skills Guide (Microeconomics)

  Draw fully labelled graphs with shifts, arrows and shaded areas, pair firm and market graphs, write cause-and-effect chains that state every direction, and show the steps in every calculation.

• Task Verbs and Free-Response Technique: Exam Skills Guide (Microeconomics)

  Learn what each free-response task verb in microeconomics asks for, how much to write, how to plan the section's time and how to set out calculations, with original worked examples.

Course skills

1. Principles and Models

Define economic principles and models.

2. Interpretation

Explain given economic outcomes.

3. Manipulation

Determine outcomes of specific economic situations.

4. Graphing and Visuals

Model economic situations using graphs or visual representations.