Is-lm Model
Is-lm Model - Related Videos
01:27
Contractionary Monetary Policy in the IS-LM Model
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2026
When inflation starts to rise, the central bank may act to slow down the economy. One common approach is to reduce the money supply. This is called contractionary monetary policy. The goal is to make borrowing more expensive and saving more appealing. As a result, people and businesses tend to spend less, which helps ease inflation.In the IS-LM model, this policy affects the money market, shown by the LM curve. When the money supply shrinks, there’s less cash available in the system. This makes...
01:31
Expansionary Monetary Policy in the IS-LM Model
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2026
Expansionary monetary policy is used when policymakers want to encourage more economic activity. By increasing the money supply, the central bank makes more funds available within the financial system. This affects the money market first and then influences spending decisions throughout the economy.When additional money enters the economy, people and businesses may find themselves holding more money than they need for everyday transactions. As they adjust their holdings, interest rates tend to...
01:31
Contractionary Fiscal Policy in the IS-LM Model
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2026
Contractionary fiscal policy is used when policymakers aim to reduce inflationary pressures or address fiscal imbalances. This approach involves decreasing government spending or increasing taxes to reduce overall demand in the economy. By limiting spending, it helps slow down economic activity and prevent overheating.In the IS-LM model, fiscal policy operates through the IS curve, which represents equilibrium in the goods market. When public spending is cut or taxes are raised, households and...
01:27
Expansionary Fiscal Policy in the IS-LM Model
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2026
When an economy is growing slowly or experiencing high unemployment, governments may try to increase overall demand through expansionary fiscal policy. This policy involves raising government spending or lowering taxes so that households and businesses have more money available to spend. As spending increases, firms often respond by producing more goods and services, thereby supporting economic growth and employment.In the IS-LM model, expansionary fiscal policy mainly affects the IS curve. The...
01:30
Limitations of IS–LM & AD–AS
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2026
The IS-LM and AD-AS models are widely used in macroeconomics to explain how the economy responds to changes in spending, policy, and market conditions. The IS-LM model focuses on the relationship between the goods market and the money market to determine output and interest rates. The AD-AS model explains how aggregate demand and aggregate supply interact to determine overall output and the price level. These models are useful for building a basic understanding of how the economy functions, but...
FAQs
At the intersection, a single income-interest-rate pair satisfies both equilibrium conditions at once: planned spending equals output, and real money demand equals the available money supply. This matters because analyzing either market separately could produce a condition that fails in the other. The intersection therefore provides the model’s joint short-run equilibrium for evaluating policy effects.
The IS curve links goods-market equilibrium to the spending decisions that determine output, while the LM curve links money-market equilibrium to real money demand and the available money supply. A policy change can alter one of these relationships, moving the intersection and changing both income and interest rates. The model thus connects separate market adjustments in one framework.
An increase or decrease in government spending or taxes is examined as a fiscal-policy change affecting the goods-market side of the model. The resulting movement in the IS-LM diagram indicates the associated changes in equilibrium national income and interest rates. It also helps assess consequences for investment and whether fiscal action supports short-run economic stabilization.
Changes in the money supply are represented as monetary-policy adjustments affecting the money-market side of the framework. By locating the new intersection of the IS and LM curves, analysts can trace the implied change in national income and the interest rate. This provides a structured way to study monetary influence on output and stabilization.
To apply the model, identify the planned-spending condition for the IS curve and the real-money-demand condition for the LM curve. Then locate their intersection, introduce a fiscal or monetary policy change, and examine the new intersection. Comparing the original and revised positions reveals the predicted changes in output, interest rates, investment, and stabilization.
Fiscal and monetary policy enter the framework through different market conditions. Government spending and taxes are analyzed through their effects on the goods-market relationship, whereas money-supply changes are analyzed through the money-market relationship. Comparing the two policy changes within the same diagram helps distinguish their predicted effects on national income and interest rates.
Macroeconomists use the IS-LM model when they need to assess short-run policy effects on the overall economy rather than examine goods or money markets in isolation. It supports analysis of output, interest rates, investment, and stabilization under alternative fiscal and monetary measures. Its value lies in organizing these linked outcomes around one equilibrium framework.