IS-LM model

IS Curve

Represents equilibrium in the goods market where total spending equals total output.

LM Curve

Represents equilibrium in the money market where money supply equals money demand.

What shifts the IS curve?

Changes in factors like government spending, taxes, or consumer confidence.

What shifts the LM curve?

Changes in money supply, interest rates, or overall demand for money.

True or False: An increase in interest rates shifts the IS curve right.

False. Higher interest rates typically decrease investment, shifting the IS curve left.

Equilibrium

Where IS and LM curves intersect, indicating simultaneous goods and money market equilibrium.

Fill in the blank: The IS-LM model analyzes __________ relationships.

macroeconomic relationships between output and interest rates.

Cause → Effect: Increase in government spending

Causes the IS curve to shift right, increasing output and income.

Interest Rates

The cost of borrowing money, which impacts investment and consumption in the economy.

Fiscal Policy vs. Monetary Policy

Fiscal policy involves government spending and taxes; monetary policy involves money supply and interest rates.

What happens during a recession in the IS-LM model?

IS curve shifts left, leading to lower output and interest rates.

Short-run vs. Long-run in IS-LM

Short-run focuses on output and interest; long-run considers full employment and potential GDP.

Example: Increase in money supply

Shifts the LM curve right, decreases interest rates, stimulates investment and output.

IS-LM model limitations

Assumes fixed prices in the short run, ignores inflation, and doesn't account for expectations.

Equilibrium Output

The level of output where IS and LM intersect, represents the economy's current state.

IS curve

The IS curve represents the relationship between interest rates and real output, showing where investment equals savings in an economy.

LM curve

The LM curve illustrates the relationship between interest rates and real output, where money supply equals money demand.

Equilibrium in IS-LM

Occurs at the intersection of the IS and LM curves, determining the economy's interest rate and output level.

Increase in government spending →

Shifts the IS curve to the right, leading to higher output and interest rates.

True or False: IS curve slopes downward.

True: A lower interest rate leads to higher investment, increasing output.

True or False: LM curve slopes upward.

True: Higher output raises money demand, increasing interest rates.

Fill in the blank: A decrease in money supply shifts the ___ curve left.

LM curve.

Fiscal policy vs. monetary policy

- Fiscal: Government spending/taxation - Monetary: Central bank controls money supply - Both affect IS-LM.

What happens during a recession?

IS curve shifts left due to lower demand, leading to reduced output and interest rates.

Effect of an increase in taxes

Shifts the IS curve left, decreasing output and potentially lowering interest rates.

Liquidity preference

The demand for money in relation to interest rates, affecting the LM curve's position.

Graph interpretation

To analyze shifts in the IS or LM curves, observe how equilibrium changes at the intersection point.

Monetary expansion →

Shifts the LM curve to the right, leading to lower interest rates and higher output.

What is crowding out?

Occurs when increased government spending raises interest rates, reducing private investment.

Example of contractionary policy

Raising interest rates to combat inflation, shifting the LM curve left, reducing output.