Given the consumption function  C = a + bY (with a>0,  0 < b<1): a.  find its marginal function and its average function. b.  find the income elsaticity of consumption ECY, and determine its sign,                 assuming  Y > 0. c.  Show the income that this consumption function is inelastic at all                   positive income levels

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter17: Capital And Time
Section: Chapter Questions
Problem 17.1P
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Given the consumption function 

C = a + bY (with a>0,  0 < b<1):

a.  find its marginal function and its average function.

b.  find the income elsaticity of consumption ECY, and determine its sign,                 assuming  Y > 0.

c.  Show the income that this consumption function is inelastic at all                   positive income levels

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