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Marlow Works

AP Macroeconomics / Unit 1

Unit 1 · 5–10%

Basic Economic Concepts

Scarcity, trade-offs, and why specialization still matters at the national scale.

Start first lessonUnit practice

Topics

  • Scarcity and opportunity cost
  • Production possibilities
  • Absolute and comparative advantage
  • Circular flow of income

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.

1 of 3Economic Indicators and the Business Cycle · easy · multiple choice

Nominal GDP rises from one year to the next while real GDP is unchanged. Which interpretation is best?

Original Marlow Works item — not a College Board question.

Take your time—this is practice, not a test.

Review checklist

  1. 01State an opportunity cost from a PPC or table.
  2. 02Assign specialization using comparative, not absolute, advantage.
  3. 03Name the real and money flows in a simple circular-flow picture.

Related resources

External links with reuse status. Marlow Works is independent and does not copy restricted exam or textbook material.

  • Official / link only

    AP Macroeconomics course page

    Official six-unit framework for national income and policy models.

    College Board · All rights reserved · accessed 2026-10-01

    Open source

  • Official / 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