The whole course, in one packet.
Twenty-eight units built from all twenty-six lecture decks and both past exams. Every unit teaches the idea, draws the graph you will be asked to draw, gives you the moves that earn the points, and then makes you do it.
Twenty-eight units
Work them in order, or jump to what you need. Your drill progress is saved in this browser and follows you across every page.
Microeconomics
Classes 1–11, Chapters 1–8 and 11. This is the midterm, and the foundation for everything after it.
Factors & Trade
Classes 12–16. Supply and demand applied to labor and capital, then to whole countries.
Macroeconomics
Classes 17–23. The final exam’s long questions live here.
Exam Lab
Recall drills, both past exams worked end to end, and the one page you get to bring.
How to use this
Rereading is the least effective thing you can do. Every unit ends in a quiz. Take it closed-book — write the answer out, then reveal. Tick the box only if you got the substance.
Each unit, in order
- Read the highlighted box. That is the one idea the unit is built around.
- Cover the graph and redraw it on blank paper — axes, curves, equilibrium, shaded areas. Then compare.
- Skim the rules. These are the sentence patterns that actually score.
- Take the quiz cold. 4 multiple choice, 2 free response, written the way Edwards writes them.
What the exams look like
| Type | Looks like | How to beat it |
|---|---|---|
| Draw and label 4 pts a time, densest scoring | “Draw supply and demand here, and add any curves you need.” | Axes named, every curve named, equilibrium marked with values, shaded areas named. |
| Short conceptual | “Which curve slopes downward, and why?” | Two sentences. State it, then give the mechanism. |
| Numerical | Elasticity, present value, the Keynesian cross. | Show the work on one line. Answer in the units asked for. |
| Applied | Eggs, Taylor Swift, soybeans, Big Macs. | Name the model first, then map the story onto it. |
Edwards writes on the exam: “Confine your answers to the space provided. Don’t fill the space with words. Less is more.” He means it. Three tight sentences and a correct diagram beat a paragraph of hedging.
The four sentences that carry the course
- Demand slopes down because marginal benefit falls. Every demand curve here is a willingness-to-pay curve.
- Supply slopes up because marginal cost rises. Every supply curve here is a marginal cost curve.
- Efficiency is MB = MC. Any wedge — tax, monopoly, externality, tariff, price control — creates deadweight loss.
- Optimizers set marginal benefit equal to marginal cost. Households: mu/P equal across goods. Firms: MR = MC. Hiring: MRPL = W. Machines: PV of MRPK = price.
Built from all 26 Fall 2025 lecture decks (Classes 1–23 plus the midterm and final reviews) and both past exams with answer keys. Chapter references follow Romer & Romer. Numerical examples, named studies and exam questions come from the course materials; explanations and drills are written to match how the exams actually score.
Progress is stored in this browser only. Source on GitHub.