Principles of Microeconomics
N. Gregory Mankiw · 9th Edition · ISBN 9780357133484 · Cengage
Complete chapter-by-chapter study guide aligned with Principles of Microeconomics (9th Edition). Includes summaries, learning objectives, and exam-style practice questions for all 22 chapters.
Overview
Mankiw's Principles of Microeconomics (9th Edition) is a leading introductory microeconomics text, focused on how individuals, firms, and markets make decisions and allocate resources. It begins with the ten principles of economics and how economists think, then develops the heart of the micro course — supply and demand, elasticity, the effects of government policies like price controls and taxes, consumer and producer surplus, market efficiency, and the costs of taxation and international trade. From there it covers market failures such as externalities and public goods, the costs of production, and the full range of market structures, from perfectly competitive firms to monopoly, monopolistic competition, and oligopoly, plus factor markets and consumer choice theory. This study guide is built to match the textbook chapter for chapter, so you study in the same order your professor teaches and can master the graphs and models the course is built around. It is an independent, aligned study guide — not the textbook and not a reproduction of it — designed to highlight the key concepts, graphs, and applied reasoning for efficient exam review.
Aligned with introductory microeconomics courses, with practice that mirrors the supply-and-demand graphs, market-structure models, and applied questions tested on course midterms and finals.
What you'll learn
The major topics this guide walks you through, matched to the textbook's order:
- Ten principles of economics
- Supply and demand
- Elasticity and its application
- Government policies and price controls
- Consumer and producer surplus
- Costs of taxation
- International trade
- Externalities and public goods
- Costs of production
- Firms in competitive markets
- Monopoly and price discrimination
- Monopolistic competition and oligopoly
- Factor markets
- Theory of consumer choice
Need the textbook itself?
By N. Gregory Mankiw and published by Cengage, Principles of Microeconomics is a best-selling introductory micro text known for its clear ten-principles framework and is one of the most commonly assigned books in intro micro courses.
Buy new, rent, or find a used copy of Principles of Microeconomics below. Make sure you get the 9th Edition (ISBN 9780357133484) — editions differ, so double-check before you order. We earn a small commission if you buy through these links — your price is unchanged.
Chapters covered
Every chapter below is fully covered in the PDF — summary, learning objectives, key terms, and exam-style practice questions with rationales.
Questions about this study guide
What exactly do I get?
A printable PDF study guide covering all 22 chapters of Principles of Microeconomics (9th Edition) — chapter summaries, learning objectives, and exam-style practice questions with rationales. One file, lifetime access, no subscription.
How soon will I get it?
Instantly. A download link appears on screen and lands in your inbox the moment your payment clears.
Does this match the 9th Edition of Mankiw's microeconomics?
Yes. It follows the 9th Edition (ISBN 9780357133484) chapter by chapter. There is also a 10th Edition with its own guide, so confirm your course edition.
Is the focus on graphs and problem-solving?
Yes. Micro exams reward fluency with supply-and-demand and market-structure graphs, and the guide emphasizes understanding and applying those models.
Can I use this if my course uses the combined Principles of Economics?
The micro chapters overlap heavily, but if your course uses the combined book, the matching combined-edition guide will line up more precisely.
Will it match my edition?
This guide is built around the 9th Edition. If your class uses a different edition, chapter numbering may shift slightly, but the topics and learning objectives are usually unchanged.
Do I still need the textbook?
The study guide is a companion, not a replacement — it helps you study efficiently and review fast, but you'll still want the textbook for full depth and any assigned readings. You can buy new, rent, or find a used copy through the price links on this page.
What if it is not what I expected?
Every purchase is backed by a 14-day money-back guarantee — email us within 14 days for a full refund.
Is this a test bank or copied from the textbook?
No. This is an original study guide written to align with Principles of Microeconomics — summaries, objectives, and practice questions with rationales, not a reproduced publisher test bank or copied text.
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About this study guide
This is an original study guide written to align with the topics and learning objectives covered in Principles of Microeconomics (9th Edition) by N. Gregory Mankiw. It is not affiliated with, endorsed by, or licensed by Cengage or the textbook's authors. All summaries, practice questions, and explanations are independently authored.