The Basics
- Simple definition: A model showing the continuous movement of money, goods, and services between households and firms in an economy.
- Core idea: One person’s spending is another’s income – money circulates.
- Think of it as: The economy’s circulatory system – money flowing like blood.
What It Actually Means
The simplest circular flow shows households supplying labor to firms and receiving wages, then spending on goods that firms produce. Firms pay wages, households buy goods – money circulates. Injections (investment, government spending, exports) add to the flow. Leakages (savings, taxes, imports) are removed from it. When injections equal leakages, the economy is in equilibrium. The model illustrates interdependence and how national income is measured.
Example
A Pakistani textile worker earns wages (household income), spends on food (firm revenue), enabling the food producer to pay workers. Money circulates. If the government spends on infrastructure (injection), or households save more (leakage), the flow changes.
Why It Matters
The circular flow underpins national income accounting and shows why recessions can spiral: if households save more and spend less, firms earn less, lay off workers, who then spend even less – a contractionary spiral.
See also
National Income • GDP • Injections • Leakages • Multiplier
Read more about this with MASEconomics:
Circular Flow of Income article (coming soon)
Measuring National Income