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Harvard
Economics
4 credits

Harvard EC 10B: Principles of Economics: Macroeconomics

Ec 10B is the spring macroeconomics half of Harvard's principles sequence: GDP, inflation, unemployment, growth, monetary and fiscal policy, and international economics. Together with Ec 10A it forms the foundation for all further economics coursework at Harvard.

Fennie is independent and not affiliated with Harvard University. This is an unofficial study guide.

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What makes it hard

Macro models are more abstract than micro's supply-and-demand intuition — students struggle to keep the short-run/long-run distinctions and model assumptions straight, and exam questions probe exactly those boundaries. The vocabulary load (rates, indices, identities) is heavier than students expect.

What you'll cover

  • • GDP and national income accounting
  • • Inflation and unemployment
  • • Economic growth
  • • Money, banking, and monetary policy
  • • Fiscal policy
  • • Open-economy macroeconomics

The EC 10B study guide

How to study for Harvard EC 10B, step by step.

  1. 1

    Work each model end to end, repeatedly

    Given a shock — a demand collapse, a rate hike — trace output, prices, and unemployment through the short run and long run. Ec 10B exams probe exactly this tracing skill, and it only builds through repetition.

  2. 2

    Keep a one-page assumptions sheet per model

    Each macro model's conclusions follow from its assumptions, and exam questions live at the boundaries between models. Write down what each model assumes and when it applies, and review the sheet weekly.

  3. 3

    Drill the vocabulary and identities as free points

    GDP accounting identities, inflation measures, and rate definitions are tested directly and are pure recall. A small daily flashcard habit converts them into guaranteed exam points.

  4. 4

    Practice short-run versus long-run side by side

    For every scenario, write both answers next to each other. Keeping the two time horizons distinct — instead of letting them merge into mush before the final — is the core Ec 10B skill.

  5. 5

    Keep the models in rotation with Fennie

    Upload the Ec 10B syllabus and Fennie's Daily Plan cycles model review through the semester so frameworks stay distinct, with flashcards for the identities and definitions generated from your actual course content. Free to start.

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How Fennie helps with EC 10B

Fennie's Daily Plans keep Ec 10B's models reviewed in rotation so short-run and long-run frameworks stay distinct instead of merging into mush before the final. Chat through how a policy shock propagates through a model, and drill flashcards on the identities and definitions exams test directly.

FAQ

Is Ec 10B harder than Ec 10A?

Many students find macro's abstraction harder than micro's intuition, though the workload is similar. Keeping each model's assumptions straight is the core challenge.

Can I take Ec 10B before Ec 10A?

The sequence is designed micro-first (10A in fall, 10B in spring), and that order is standard. Check current course policies if your schedule demands otherwise.

How do I study for Ec 10B exams?

Practice working each model end to end — given a shock, trace output, prices, and rates in the short and long run. Definitions matter too; the vocabulary questions are free points if you've drilled them.

Pass EC 10B with a plan, not a cram

Upload your EC 10B materials and Fennie generates a Daily Plan paced to your deadline — plus chat, flashcards, and quizzes built from the actual course content.

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More Harvard courses

EC 10A — Principles of Economics: Microeconomics

Ec 10A is the fall-semester microeconomics half of Harvard's famous Principles of Economics sequence — historically one of the largest courses at the college. It covers supply and demand, markets, firm behavior, and policy applications, and is the entry point to the economics concentration.

EC 1010A — Intermediate Microeconomics

Ec 1010A is Harvard's intermediate microeconomic theory course — consumer and producer optimization, equilibrium, market failures, and welfare — and the first of the two theory pillars of the economics concentration after Ec 10. It's where economics goes from graphs to calculus.

EC 1010B — Intermediate Macroeconomics

Ec 1010B is Harvard's intermediate macroeconomic theory course — growth, fluctuations, unemployment, inflation, and the analytics of fiscal and monetary policy — the second theory pillar of the economics concentration after Ec 10. Models that Ec 10B sketched verbally get full mathematical treatment here.