Economic Indicators & Business Cycle

Name: AP Macroeconomics Unit 2: Economic Indicators & Business Cycle
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12–17% of the exam3 lessons · 41 min

What this unit covers

The topics below follow the published Macro course framework for Unit 2. This unit is worth 12–17% of the exam, so budget your time against that rather than against how long the unit takes to teach.

GDPUnemploymentInflationBusiness cycle

Lessons in this unit

Gross Domestic Product14 min · 3 objectivesDefine GDP and identify what is and is not counted in it · Compute GDP using the expenditure approach · Distinguish nominal from real GDP and explain why real GDP measures growth
Unemployment13 min · 3 objectivesCalculate the unemployment rate and labor force participation rate · Distinguish frictional, structural, and cyclical unemployment · Explain the natural rate of unemployment and full employment
Inflation & the Business Cycle14 min · 3 objectivesCalculate the inflation rate using the Consumer Price Index · Distinguish nominal from real values and identify who is helped or hurt by inflation · Identify the four phases of the business cycle and the output gaps they produce

Formulas in Unit 2

GDP — expenditure approach

GDP = C + I + G + Xn (where Xn = exports − imports)

The four spending categories. Transfer payments and purely financial transactions are excluded because no new good or service is produced.

Real vs. nominal GDP

Real GDP = (Nominal GDP / GDP deflator) × 100

Nominal GDP uses current-year prices; real GDP holds prices constant at a base year to strip out inflation. Only real GDP reflects a true change in output.

Unemployment rate & natural rate

Unemployment rate = (Unemployed / Labor force) × 100 · Natural rate = frictional % + structural %

Labor force = employed + unemployed. The natural rate excludes cyclical unemployment, which is zero at full employment.

Inflation rate from the CPI

Inflation rate = [(CPI_new − CPI_old) / CPI_old] × 100

A simple percentage change in the index. The same formula finds the rate between any two years once you know the CPI for each.

What examiners penalize here

When a question reports rising nominal GDP, always check the price level before concluding output grew. If prices rose just as fast, real GDP is unchanged. "Growth" on the AP exam means an increase in **real** GDP.
Watch the labor-force denominator. Adding or removing people who are *not actively seeking work* changes the unemployment rate without any change in the number of jobs. The exam loves discouraged-worker and new-entrant scenarios.
Link the indicators together: at a peak, expect low unemployment and rising inflation (inflationary gap); in a recession, expect high cyclical unemployment and falling prices or disinflation (recessionary gap). Free-response questions often ask you to connect the business-cycle phase to both unemployment and inflation.

Practice Macro

Our practice bank is drawn from across the whole course rather than filtered to one unit, which is closer to how the exam asks anyway — it will not tell you which unit a question is testing.

38 practice questionsEvery one with a written explanation FRQ trainerWritten answers scored against the rubric Macro study guideAll units, weights and score data in one place All 6 Macro unitsThe full course

Questions about this unit

How much of the AP Macroeconomics exam is Unit 2?

Unit 2, Economic Indicators & Business Cycle, is worth 12–17% of the Macro multiple-choice section according to the published course framework. Across all 6 units that makes it a substantial share — heavier than an even split would give it.

What topics are covered in Macro Unit 2?

Economic Indicators & Business Cycle covers GDP, Unemployment, Inflation and Business cycle.

How should I study Macro Unit 2?

Read the 3 lessons below first — about 40 minutes — then work practice questions on these topics. Finish with practice questions and read the explanation for every one you get right by elimination as well as the ones you miss.

All 6 units of AP Macroeconomics

Unit names, topics and exam weights follow the published College Board course framework for AP Macroeconomics. AP® is a trademark registered by the College Board, which does not endorse this site.