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Understanding Multiplier Effect
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- Basic Concept
- Multiplier effect measures proportional increase in income from capital injections
- Calculated as change in income divided by change in spending
- Every dollar of investment produces an extra dollar of income
- Types of Multipliers
- Money multiplier shows banks' ability to amplify central bank reserves
- Deposit multiplier demonstrates fractional reserve banking's lending effect
- Fiscal multiplier measures government spending's impact on GDP
- Investment multiplier quantifies positive effects from business spending
- Keynesian Perspective
- Keynesian theory states government spending creates more business activity
- Multiplier effect leads to increased income for companies and workers
- Government spending creates more supply and aggregate demand
- Money Supply Multiplier
- Banks can lend one minus reserve requirement to others
- Multiplier depends on reserve requirement ratio
- Fed reduced reserve requirement to 0% during COVID-19 pandemic
- Higher reserve requirement increases money supply multiplier
- Economic Impact
- Multiplier effect often leads to positive economic growth
- Direct, indirect, and induced impacts occur through financial transactions
- High multipliers generally indicate better economic outcomes