Over the past 40 years interest rates in the developed world have fallen to very low levels. One argument for this is rising income inequality which has led to imbalances in savings and insufficient aggregate demand. Take the following Keynesian consumption functions for the "poor" (P) and “rich" (R) as given c = C+c°y°, (1) CR = Č +CRYR. (2) Suppose that C is the same for both poor and rich. Further suppose that c > c and define aggregate demand as the sum of CP and CR. Based on the above, could a rise in income inequality explain "insufficient demand"? Ex- plain.

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Chapter18: The Keynesian Model
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1. Over the past 40 years interest rates in the developed world have fallen to very low levels.
One argument for this is rising income inequality which has led to imbalances in savings and
insufficient aggregate demand. Take the following Keynesian consumption functions for the
"poor" (P) and "rich" (R) as given
c' = Č+c°r°,
CR = Č + C®YR.
(1)
(2)
Suppose that C is the same for both poor and rich. Further suppose that c" > c* and define
aggregate demand as the sum of CP and CR.
Based on the above, could a rise in income inequality explain "insufficient demand"? Ex-
plain.
Transcribed Image Text:1. Over the past 40 years interest rates in the developed world have fallen to very low levels. One argument for this is rising income inequality which has led to imbalances in savings and insufficient aggregate demand. Take the following Keynesian consumption functions for the "poor" (P) and "rich" (R) as given c' = Č+c°r°, CR = Č + C®YR. (1) (2) Suppose that C is the same for both poor and rich. Further suppose that c" > c* and define aggregate demand as the sum of CP and CR. Based on the above, could a rise in income inequality explain "insufficient demand"? Ex- plain.
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