IBonomicsCircular Flow of IncomeSL
MacroeconomicsA model illustrating how money, goods, services, and resources flow between households, firms, the government, the financial sector, and the foreign sector in an economy.
Curves and elements
- households
- Households: Provide factors of production and receive income. Use income to consume goods and services.
- firms
- Firms: Produce goods and services using factors of production. Pay income to households and receive revenue from sales.
- government
- Government: Collects taxes and injects spending into the economy, influencing both households and firms.
- banks
- Financial Sector (Banks): Facilitate savings and investments, linking households and firms.
- world trade
- Foreign Sector (World Trade): Introduces imports (leakages) and exports (injections), affecting the overall flow of income.
Key explanations
- 1
Households provide factors of production (land, labor, capital, and entrepreneurship) to firms and receive income in return.
- 2
Firms use these factors to produce goods and services, which they sell to households.
- 3
Households pay for these goods and services, creating a flow of consumer expenditure back to firms.
- 4
Savings from households go to banks, which provide investments back into the economy, especially to firms.
- 5
The government collects taxes from households and firms and injects money back into the economy through government spending.
- 6
International trade introduces imports (leakage) and exports (injection) into the circular flow through interactions with the global economy.
Example exam question
Explain how injections and leakages affect the circular flow of income in an open economy.
Show example answer
Injections such as investment, government spending, and exports add income to the circular flow, increasing economic activity. Leakages like savings, taxes, and imports remove income from the flow, potentially reducing total output. If injections exceed leakages, the economy grows. If leakages exceed injections, the economy may contract. In an open economy, the balance between these forces determines national income levels and overall economic health.
