How the Macroeconomy Works

What How the Macroeconomy Works covers

How the macroeconomy works is examined on Papers 2 and 3, and provides the model the rest of macroeconomics uses. It runs from the circular flow through the AD/AS diagram to the components of aggregate demand and the multiplier.

The 9 subtopics

Each one has its own page. AQA AS Economics students sit this topic in the first year.

• The circular flow of incomeMoney flowing between households and firms, and the injections and withdrawals that change it.Open →
• The aggregate demand and aggregate supply curvesWhat each curve shows, why it slopes the way it does, and what shifts aggregate demand.Open →
• What shifts short-run and long-run aggregate supplyCosts and wages in the short run, and productive capacity in the long run.Open →
• Macroeconomic equilibrium and economic shocksWhere AD meets AS, and the effect of demand-side and supply-side shocks including stagflation.Open →
• Consumption and investmentDisposable income, interest rates, confidence and the wealth effect, and what drives firms to invest.Open →
• Government spending and net exportsWhat determines the level of government spending, and the influences on exports and imports.Open →
• The accelerator, saving and investmentThe accelerator theory, why investment is volatile, and the difference between saving and investment.Open →
• Aggregate demand and the level of economic activityThe multiplier process, why each round shrinks, and how the multiplier is calculated.Open →
• The determinants of aggregate supplyWage rates, raw material prices and taxation in the short run, productivity and mobility in the long run.Open →

What you need to know

Answer each one before you reveal it.

Take How the Macroeconomy Works further

The same content, four other ways.

Commonly confused

Pairs that lose marks when they are blurred together.

• Injection vs Withdrawal

  Injection: spending entering the circular flow. Withdrawal: income leaving the circular flow.

• Aggregate demand vs Aggregate supply

  Aggregate demand: total planned expenditure on domestic output. Aggregate supply: total domestic output producers are willing to provide.

• Marginal propensity to consume vs Average propensity to consume

  Marginal propensity to consume: share of extra income used for spending. Average propensity to consume: share of total income used for spending.

Questions from this topic

Each one with the model answer underneath.

1. 1

   What does the circular flow of income model illustrate?

   Model answer

   It shows how money flows between households and firms in an economy through factor markets and product markets.

2. 2

   What happens to the income that households receive in the simple circular flow model?

   Model answer

   Households spend their income on goods and services produced by firms in product markets.

3. 3

   How do firms benefit from household spending in the circular flow?

   Model answer

   Firms receive revenue from the sale of goods and services to households.

4. 4

   What role do households play in supplying resources within the circular flow?

   Model answer

   Households provide factors of production (land, labour, capital, enterprise) to firms through factor markets.

5. 5

   How are households compensated for providing factors of production to firms?

   Model answer

   Firms pay factor incomes to households: rent for land, wages for labour, interest for capital, and profit for enterprise.

6. 6

   Define injections in the context of the circular flow of income.

   Model answer

   Injections are additions to the circular flow that do not originate from household spending.

What is inside Levo

Six ways to work the same material.

How the Macroeconomy Works revision questions

Is How the Macroeconomy Works examined at AS in AQA Economics?

Yes. It sits in Papers 1 and 3, which you take in the first year, so it is on the AS paper as well as counting towards the full A level.

What does How the Macroeconomy Works cover in AQA AS-Level Economics?

9 subtopics: the circular flow of income, the aggregate demand and aggregate supply curves, what shifts short-run and long-run aggregate supply, macroeconomic equilibrium and economic shocks, consumption and investment, government spending and net exports, the accelerator, saving and investment, aggregate demand and the level of economic activity and the determinants of aggregate supply. Each one has its own page with questions and model answers.

How is How the Macroeconomy Works organised?

By the AQA 7136 specification, subtopic by subtopic, so it matches the order you are taught it in.