Krugman's Economics For The Ap® Course
Krugman's Economics For The Ap® Course
3rd Edition
ISBN: 9781319113278
Author: David Anderson, Margaret Ray
Publisher: Worth Publishers
Question
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Chapter 17, Problem 1CYU

a)

To determine

The impact on aggregate demand.

a)

Expert Solution
Check Mark

Explanation of Solution

An increase in the interest rate due to monetary policy encourages people to save more and consume less because they are getting higher returns on their savings. When people have less income on their hands, the spending on consumer goods decreases and causes the aggregate demand in the market to fall, leading to a leftward shift in the aggregate demand curve.

Economics Concept Introduction

The aggregate demand curve represents the relationship between the price level and aggregate quantity demanded by households, firms, the government, and foreign nations.

A change in aggregate price level while keeping other factors constant causes a movement along the aggregate demand curve.

Aggregate demand curve shifts due to the following changes:

  • Changes in expectations
  • Changes in wealth
  • Change in the size of the existing stock of physical capital
  • When government policies change.

b)

To determine

The impact on aggregate demand.

b)

Expert Solution
Check Mark

Explanation of Solution

A fall in the value of money causes an upward movement along the aggregate demand curve. It doesn’t shift the demand curve.

c)

To determine

The impact on aggregate demand.

c)

Expert Solution
Check Mark

Explanation of Solution

News of a worse expected situation in the job market lowers the aggregate demand in the market and thus causes a leftward shift in the aggregate demand curve.

d)

To determine

The impact on aggregate demand.

d)

Expert Solution
Check Mark

Explanation of Solution

A fall in tax rate represents the expansionary fiscal policy, leading to higher aggregate demand because a lower tax rate reflects a higher disposable income. When people have high disposable income in their hands, the spending on consumer goods increases and causes the aggregate demand in the market to increase, leading to a rightward shift in the aggregate demand curve.

e)

To determine

The impact on aggregate demand.

e)

Expert Solution
Check Mark

Explanation of Solution

An increase in the value of assets due to a fall in the aggregate price level causes a downward movement along the aggregate demand curve. It doesn’t shift the demand curve.

f)

To determine

The impact on aggregate demand.

f)

Expert Solution
Check Mark

Explanation of Solution

An increase in the actual value of assets due to a surge in real estate causes the aggregate demand to expand in the market because a higher value of assets representing the higher purchasing power individuals has in their hands. Thus, people demand more goods and services, and the aggregate demand curve shifts to the right.

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