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Explain why the following statements are false. a. “The aggregate-demand curve slopes downward because it is the horizontal sum of the demand curves for individual goods.” b. “The long-run aggregate-supply curve is vertical because economic forces do not affect long-run aggregate supply.” c. “If firms adjusted their prices every day, then the short-run aggregate-supply curve would be horizontal.” d. “Whenever the economy enters a recession, its long-run aggregate-supply curve shifts to the left.”

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Principles of Macroeconomics (Mind...

8th Edition
N. Gregory Mankiw
Publisher: Cengage Learning
ISBN: 9781305971509
BuyFind

Principles of Macroeconomics (Mind...

8th Edition
N. Gregory Mankiw
Publisher: Cengage Learning
ISBN: 9781305971509

Solutions

Chapter
Section
Chapter 20, Problem 5PA
Textbook Problem

Explain why the following statements are false.

a. “The aggregate-demand curve slopes downward because it is the horizontal sum of the demand curves for individual goods.”

b. “The long-run aggregate-supply curve is vertical because economic forces do not affect long-run aggregate supply.”

c. “If firms adjusted their prices every day, then the short-run aggregate-supply curve would be horizontal.”

d. “Whenever the economy enters a recession, its long-run aggregate-supply curve shifts to the left.”

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