Economics Study Guides
Free, clear explanations of key economics concepts. Written by a PhD economist with 15+ years teaching experience.
Supply and Demand Explained Simply
Understand the most fundamental concept in economics: how prices are determined by the interaction of buyers and sellers.
Market Equilibrium: Where Supply Meets Demand
Learn how markets find balance, what causes surpluses and shortages, and how equilibrium shifts.
Price Elasticity of Demand: A Complete Guide
Master elastic vs. inelastic demand, the midpoint formula, and how elasticity affects revenue.
Consumer Surplus and Producer Surplus Explained
Understand economic welfare, deadweight loss, and how to measure the gains from trade.
Opportunity Cost: The Foundation of Economic Thinking
Every choice has a cost. Learn the concept that underpins all of economics with clear examples.
Monopoly vs Perfect Competition: Key Differences
Compare market structures: pricing, efficiency, and real-world examples of each.
Game Theory Basics: Strategy, Nash Equilibrium, and the Prisoner's Dilemma
An introduction to strategic thinking in economics: dominant strategies, Nash equilibrium, and applications.
GDP Explained: What It Measures and Why It Matters
What gross domestic product actually measures, how it is calculated, and what it misses.
Fiscal Policy vs Monetary Policy: What's the Difference?
Government spending and taxes vs. central bank interest rates: how each stabilizes the economy.
The IS-LM Model Explained: A Step-by-Step Guide
A clear walkthrough of the IS-LM framework: goods market, money market, and policy analysis.
Microeconomics vs Macroeconomics: What's the Difference?
The two branches of economics explained: what each covers, key topics, and how they connect.
AP Economics Study Guide: Micro & Macro Review
Everything you need to review for the AP Micro and AP Macro exams: topics, formulas, and tips.
How to Create Practice Exams That Actually Help You Study
Why practice testing is the most effective study method, and how to create practice exams from your notes.
How to Study for Exams: Evidence-Based Strategies That Work
Spaced repetition, active recall, practice testing, and other evidence-based study strategies.
Active Recall: The Most Effective Study Method You're Not Using
The science behind active recall and how to implement it with practice tests and self-quizzing.
How to Make a Study Guide: From Notes to Practice Tests
A step-by-step process for turning your notes into an effective study guide with practice questions.
Best Study Apps for College Students in 2026
The best apps for flashcards, practice tests, note-taking, and AI tutoring — organized by category.
Learn Faster with Interactive Simulations
These guides give you the theory. The Econ Tutor app lets you drag curves, run simulations, and ask an AI tutor when you get stuck.