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11. 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.”

11. 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.”

Principles of Economics, 7th Edition (MindTap Course List)
Principles of Economics, 7th Edition (MindTap Course List)
7th Edition
ISBN:9781285165875
Author:N. Gregory Mankiw
Publisher:N. Gregory Mankiw
Chapter33: Aggregate Demand And Aggregate Supply
Section: Chapter Questions
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11. 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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