Explain: The Circular flow of Income: Income- Explain: Withdrawals - Definition – A model of the economy, which shows the flow of goods, services and factors and their payments around the economy. Wealth - Note: - The total value of the flow is the GDP of the economy, if the flow expands, so does the GDP. - Therefore when in equilibrium, injections must equal withdrawals. - There are lag times between different areas, also not all areas flow equally as fast. Injections -