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Questions and Answers
What is the long-run effect of an increase in the money supply on the interest rate?
What is the long-run effect of an increase in the money supply on the interest rate?
- The interest rate decreases in the long run.
- The interest rate increases in the long run.
- The interest rate initially increases, then decreases in the long run.
- The interest rate remains unchanged in the long run. (correct)
Under a fixed-exchange-rate system, what happens to the real exchange rate in the long run?
Under a fixed-exchange-rate system, what happens to the real exchange rate in the long run?
- The real exchange rate is free to vary. (correct)
- The real exchange rate is fixed.
- The real exchange rate depreciates over time.
- The real exchange rate appreciates over time.
What is the primary argument in favor of a floating-exchange-rate system?
What is the primary argument in favor of a floating-exchange-rate system?
- It allows monetary policy to be used for other purposes. (correct)
- It helps to stabilize the global economy.
- It promotes international trade and investment.
- It allows for more government intervention in the economy.
What is the effect of a decrease in government spending on the overall economy?
What is the effect of a decrease in government spending on the overall economy?
What is the result of a devaluation of a currency under a fixed-exchange-rate system?
What is the result of a devaluation of a currency under a fixed-exchange-rate system?
What is the short-run effect of an increase in the money supply on income and interest rates?
What is the short-run effect of an increase in the money supply on income and interest rates?
What is the main goal of the Keynesian cross model?
What is the main goal of the Keynesian cross model?
What is the effect of an increase in government spending on income in the Keynesian-cross model?
What is the effect of an increase in government spending on income in the Keynesian-cross model?
Which of the following is a characteristic of the liquidity preference theory?
Which of the following is a characteristic of the liquidity preference theory?
What is the effect of an increase in the money supply on the interest rate in the liquidity preference model?
What is the effect of an increase in the money supply on the interest rate in the liquidity preference model?
What is the equilibrium interest rate in the liquidity preference model when the money demand function is (M / P)d = 2,200 – 200r, the money supply M is 2,000, and the price level P is 2?
What is the equilibrium interest rate in the liquidity preference model when the money demand function is (M / P)d = 2,200 – 200r, the money supply M is 2,000, and the price level P is 2?
What is the primary role of fiscal policy in the Keynesian-cross model?
What is the primary role of fiscal policy in the Keynesian-cross model?
If the MPC is 0.6 and there are no income taxes, a decrease in lump-sum taxes by 200 will lead to a shift in the IS curve by:
If the MPC is 0.6 and there are no income taxes, a decrease in lump-sum taxes by 200 will lead to a shift in the IS curve by:
An increase in investment demand due to more optimistic expectations will lead to a _____ in the interest rate and a _____ in output.
An increase in investment demand due to more optimistic expectations will lead to a _____ in the interest rate and a _____ in output.
A higher price level in the economy will lead to a _____ real money supply and a _____ interest rate.
A higher price level in the economy will lead to a _____ real money supply and a _____ interest rate.
According to the graph, if the economy starts at short-term equilibrium D, the long-run equilibrium will be at _____ with a _____ price level.
According to the graph, if the economy starts at short-term equilibrium D, the long-run equilibrium will be at _____ with a _____ price level.
A given increase in government spending will shift the IS curve more to the right if the:
A given increase in government spending will shift the IS curve more to the right if the:
If the MPC is 0.8, a decrease in lump-sum taxes by 100 will lead to an increase in output by:
If the MPC is 0.8, a decrease in lump-sum taxes by 100 will lead to an increase in output by:
Study Notes
Keynesian Cross Model
- The Keynesian cross shows the equilibrium of income and planned expenditure in the short run.
- Fiscal policy has a multiplying effect on income because it changes income, which changes consumption, which further changes income.
Liquidity Preference Model
- The supply of real money balances decreases as the interest rate increases.
- The interest rate adjusts to move the money market to equilibrium following a change in the money supply.
Money Demand Function
- The money demand function is (M / P)d = 2,200 – 200r, where r is the interest rate in percent.
- The equilibrium interest rate is determined by the money demand function.
Fiscal Policy and IS Curve
- A decrease in lump-sum taxes (T) shifts the IS curve to the right by the amount of the tax decrease multiplied by the marginal propensity to consume (MPC).
IS-LM Framework
- An increase in investment demand for any given level of income and interest rates increases output and raises interest rates.
- An increase in the money supply increases output and lowers the interest rate in the short run.
Aggregate Demand Curve
- The aggregate demand curve slopes downward and to the right because a higher price level causes a lower real money supply, which raises the interest rate and reduces spending.
Short Run to Long Run
- The long-run equilibrium will be at a higher price level and lower output compared to the short-run equilibrium.
Effects of Tax Increase and Government Spending
- A given increase in taxes shifts the IS curve more to the left the larger the marginal propensity to consume.
- An increase in government spending shifts the IS curve to the right.
Effects of Money Supply Increase
- An increase in the money supply increases income and lowers the interest rate in both the short run and in the long run.
Fixed-Exchange-Rate System
- In the long run, the nominal exchange rate is fixed, but the real exchange rate is free to vary under a fixed-exchange-rate system.
- A devaluation of a currency under a fixed-exchange-rate system occurs when the level at which the currency is fixed is decreased.
Floating-Exchange-Rate System
- One argument favoring a floating-exchange-rate system is that it allows monetary policy to be used for other purposes.
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Description
Test your understanding of the Keynesian Cross model, a fundamental concept in macroeconomics. Evaluate your knowledge of equilibrium income, interest rates, and fiscal policy in the short and long run.
