69.) Consumption Function Suppose that a country's eonsumption function is given by 9I + 0.8/F-0.31 C = where C and I are expressed in billions of dollars. (a) Find the marginal propensity to save when income is $25 billion. (b) Determine the relative rate of change of C with respect to I when income is $25 billion.

ECON MACRO
5th Edition
ISBN:9781337000529
Author:William A. McEachern
Publisher:William A. McEachern
Chapter9: Aggregate Demand
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Consumption Function Suppose that a country's consumption function is given by

C=(9\sqrt(I)+0.8\sqrt(I^(3))-0.3I)/(\sqrt(I))

where C and I are expressed in billions of dollars.

(a) Find the marginal propensity to save when income is $25 billion.

(b) Determine the relative rate of change C with respecy to I when income is $25 bilion.

69.) Consumption Function Suppose that a country's
eonsumption function is given by
9I+ 0.8 - 0.31
C =
where C and I are expressed in billions of dollars.
(a) Find the marginal propensity to save when income is
$25 billion.
(b) Determine the relative rate of change of C with respect to I
when income is $25 billion.
Transcribed Image Text:69.) Consumption Function Suppose that a country's eonsumption function is given by 9I+ 0.8 - 0.31 C = where C and I are expressed in billions of dollars. (a) Find the marginal propensity to save when income is $25 billion. (b) Determine the relative rate of change of C with respect to I when income is $25 billion.
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