MACROECONOMICS
14th Edition
ISBN: 9781337794985
Author: Baumol
Publisher: CENGAGE L
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Question
Chapter 9, Problem 3TY
To determine
To construct: An aggregate
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Students have asked these similar questions
"The demand curves for all products have
negative slopes. For instance, the demand
curves for milk,automobiles, personal
computers, and shirts all have negative
slopes. Therefore, because the aggregate
demand curve shows the demand for all
products, it too must have a negative slope. "
Comment on this assertion.
The following graph shows a decrease in aggregate demand (AD) in a hypothetical country. Specifically, aggregate demand shifts to the left from AD1AD1 to AD2AD2, causing the quantity of output demanded to fall at all price levels. For example, at a price level of 140, output is now $200 billion, where previously it was $300 billion.
The following table lists several determinants of aggregate demand.
Complete the table by indicating the change in each determinant necessary to decrease aggregate demand.
Change needed to decrease AD
Wealth
(increase/ decrease)
Taxes
(increase/ decrease)
Expected rate of return on investment
(increase/ decrease)
Incomes in other countries
(increase/ decrease)
The graphs illustrate an initial equilibrium for the economy. Suppose that the government increases taxes.
Use the graphs to show the new positions of aggregate demand (AD), short-run aggregate supply (SRAS), and long-run
aggregate supply (LRAS) in both the short run and the long run, as well as the short-run and long-run equilibriums resulting
from this change. Then, indicate what happens to the price level and GDP in the short run and in the long run.
Aggregate price level
Short-run graph
LRAS
SRAS
Short-run equilibrium
Real GDP
AD
Aggregate price level
Long-run graph
LRAS
Long-run equilibrium
Real GDP
AD
SRAS
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- PRICE LEVEL Suppose there is some hypothetical economy in which households spend $0.50 of each additional dollar they earn and save the $0.50 they have left over. The following graph plots the economy's initial aggregate demand curve (AD₁). Suppose now that the government increases its purchases by $2 billion. Use the green line (triangle symbol) on the following graph to show the aggregate demand curve (AD₂) after the multiplier effect takes place. Hint: Be sure the new aggregate demand curve (AD2) is parallel to AD1. You can see the slope of AD₁ by selecting it on the following graph. 116 114 112 110 AD₁ 108 106 104 12 102 100 100 102 104 106 108 110 112 114 116 38.3¢ AD 3 (?)arrow_forwardWhy do the aggregate expenditure function and the aggregate demand curve both shift upward at the same time?arrow_forwardThe following graph shows an increase in aggregate supply (ASAS) in a hypothetical economy. Specifically, aggregate supply shifts to the right from AS1AS1 to AS2AS2, causing the quantity of output supplied at a price level of 125 to rise from $250 billion to $350 billion. The following table lists several determinants of aggregate supply. Complete the table by indicating the changes in the determinants necessary to increase aggregate supply. Determinant Change Needed to Increase ASAS Nominal Wage Rate Tax Rates Technologyarrow_forward
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