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Economics8 min read·Dec 15, 2025

Free Alternatives to Mankiw's Principles of Economics (Save $170)

Mankiw's Principles of Economics is the best-selling economics textbook in the world, and it costs about $170 new. Intro economics, however, is one of the best-covered subjects in open publishing — several complete, peer-reviewed, free textbooks teach the same ten principles, supply and demand, elasticity, market structures, and macro fundamentals.

The direct replacements

Principles of Economics 3e (OpenStax)

by Rice University

A complete micro + macro intro text, free as PDF or web. Chapter coverage maps closely to Mankiw — this is the default choice.

Find it free

The Economy (CORE Econ)

by CORE Team

A genuinely modern free textbook built by an international consortium — teaches economics through real data, inequality, and climate questions. Used at UCL and dozens of universities. Choose this if Mankiw bores you.

Find it free

Principles of Microeconomics / Macroeconomics (OpenStax)

by Rice University

The same OpenStax material split into single-semester volumes, matching how most courses are structured.

Find it free

Classic texts worth reading alongside

  • The Wealth of Nations (Adam Smith) — public domain; read selectively, Book I especially
  • Essays in Persuasion (John Maynard Keynes) — public domain in many countries; Keynes was a superb writer
  • Economic Sophisms (Frédéric Bastiat) — free, short, and the wittiest defense of free trade ever written

Making a free text work for a Mankiw course

Match by topic, not chapter number. Every intro course covers the same sequence: scarcity and trade-offs, supply and demand, elasticity, consumer/producer surplus, market failures, then GDP, inflation, unemployment, and monetary policy. OpenStax covers each with the same graphs. The end-of-chapter problems differ from your problem sets, but the concepts tested are identical — and CORE's interactive charts often explain them better than static textbook figures.

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