Skip to main content
Back

The IS-LM Model in Macroeconomics

Control buttons has been changed to "navigation" mode.
1/20
  • What does the IS relation represent?
    The IS relation represents equilibrium in the goods market where investment depends on production and the interest rate.
  • What is the formula for the IS relation?
    The IS relation is given by \(Y=C(Y-T)+I(Y,i)+G\), where Y is output, C is consumption, I is investment, i is interest rate, T is taxes, and G is government spending.
  • Why is the IS curve downward sloping?
    The IS curve is downward sloping because an increase in the interest rate decreases investment and demand, leading to lower output.
  • What does the LM relation represent?
    The LM relation represents equilibrium in the financial markets where real money supply equals real money demand.
  • What is the formula for the LM relation?
    The LM relation is given by \(M/P=L(Y,i)\), where M is money supply, P is price level, L is liquidity preference, Y is income, and i is interest rate.
  • What does equilibrium in both goods and financial markets imply?
    Equilibrium occurs at the intersection of the IS and LM curves, where both goods and financial markets are in balance.
  • How does an increase in taxes affect the IS curve?
    An increase in taxes shifts the IS curve to the left, leading to a decrease in output.
  • What is the effect of a monetary expansion on the LM curve?
    A monetary expansion increases money supply, shifting the LM curve down and lowering the interest rate.
  • What happens to output when the interest rate increases?
    An increase in the interest rate reduces investment and demand, causing output to decrease.
  • What is fiscal consolidation?
    Fiscal consolidation refers to a fiscal contraction, such as a decrease in government spending or increase in taxes, aimed at reducing budget deficits.
  • What is the policy mix in the IS-LM model?
    The policy mix is the combination of monetary and fiscal policies used to influence output and interest rates.
  • How does a fiscal expansion affect the IS curve?
    A fiscal expansion, such as an increase in government spending or decrease in taxes, shifts the IS curve to the right, increasing output.
  • What is the effect of monetary tightening?
    Monetary tightening decreases money supply, shifting the LM curve up, increasing interest rates, and reducing output.
  • What does the central bank do to achieve equilibrium in financial markets?
    The central bank adjusts the money supply to set the interest rate that balances money demand and supply.
  • Why is the LM curve horizontal in the short run?
    In the short run, the LM curve is horizontal because the central bank fixes the interest rate by adjusting money supply.
  • What causes the IS curve to shift left?
    An increase in taxes or a decrease in government spending shifts the IS curve left, lowering output.
  • What causes the LM curve to shift down?
    An increase in money supply shifts the LM curve down, lowering interest rates and increasing output.
  • How do fiscal and monetary policies interact in a recession?
    Both fiscal expansion and monetary expansion can be used together to increase output during a recession.
  • What is the effect of an increase in government spending on output?
    An increase in government spending shifts the IS curve right, increasing output and income.
  • What is the role of interest rate in the IS-LM model?
    The interest rate balances investment and money demand, influencing output and equilibrium in goods and financial markets.