AP Microeconomics / Unit 1
Unit 1 · 12–15%
Basic Economic Concepts
Scarcity forces trade-offs. Models make those trade-offs visible.
Topics
- Scarcity and opportunity cost
- Production possibilities
- Comparative advantage
- Marginal analysis
Lessons
Key terms
Original practice
Marlow Works questions. If this unit does not have its own items yet, you will see other questions from the same course.
Maya can spend Saturday tutoring for $80 or painting a mural that she values at $50 of enjoyment (and she cannot do both). What is her opportunity cost of tutoring, and why?
Original Marlow Works item — not a College Board question.
Take your time—this is practice, not a test.
Review checklist
- 01State a trade-off in terms of what is given up.
- 02Read a PPC point as efficient, inefficient, or impossible.
- 03Compare opportunity costs before assigning specialization.
Related resources
External links with reuse status. Marlow Works is independent and does not copy restricted exam or textbook material.
Official / link only
AP Microeconomics course page
Official six-unit framework for markets, costs, and market failure.
College Board · All rights reserved · accessed 2026-10-01
Open sourceCC BY — attribution required
Principles of Microeconomics: Scarcity and Social Provisioning
Open microeconomics background for scarcity, markets, and elasticity.
Open Textbook Library listing · CC BY · accessed 2026-10-01
Open sourceOfficial / link only
FRED economic data
Federal Reserve economic data. Terms vary by series; do not scrape or ingest.
Federal Reserve Bank of St. Louis · Varies by series · accessed 2026-10-01
Open source