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Circular flow of income diagram

Households and firms with the flows of income and spending between them, then injections and withdrawals one at a time.

Circular flow of income diagram with households and firms, linked by factor income and consumption expenditure.

Open the interactive diagram

Included in the school licence.

Teaching notes

The circular flow of income is the starting point for macroeconomics: it shows national income as spending that goes round between households and firms. The starting point shows the two sectors, with factor income flowing one way and consumption expenditure the other.

The scenarios build it up step by step: real and money flows, then injections and withdrawals, then the effect of an increase in investment, government spending or exports, and of an increase in saving, taxation or imports.

In a lesson, try asking the class to sort a list of flows into injections and withdrawals before you show them on the diagram. It sets up aggregate demand and, in Year 13, the multiplier.

What you can show

Each of these is one click in the diagram's Scenarios menu, and each starts from the plain diagram.

Exam boards

On the Edexcel A, Edexcel B, AQA, OCR, Eduqas, WJEC, Cambridge International and Edexcel International A-level specifications, drawn in exam style: black lines, clear labels and no grid.