Assume that we have a Cobb-Douglas type aggregate production function in the form: Y = Ka.Lb  a. Find output per labor; capital per labor (y=Y/ L and k= K/L ).  b. Briefly define what is derivative of y with respect to k or  or y' or dy/dk ? c. Briefly explain why y'>0 or dy/dk > 0 . Is it possible that dy/dk < 0 ? Why?

Microeconomic Theory
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ISBN:9781337517942
Author:NICHOLSON
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Chapter9: Production Functions
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Problem 9.2P
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Assume that we have a Cobb-Douglas type aggregate production function in the form: Y = Ka.Lb 

a.

Find output per labor; capital per labor (y=Y/ L and k= K/L ). 

b.

Briefly define what is derivative of y with respect to k or  or y' or dy/dk ?

c.

Briefly explain why y'>0 or dy/dk > 0 . Is it possible that dy/dk < 0 ? Why?

d.

Briefly explain why y'' ≤ 0 .  

e.

Find the elasticity of substitution between K and L. What does expansion path look like?

1.
Assume that we have a Cobb-Douglas type aggregate production function in the form:
Y = KªL®
Find output per labor; capital per labor (y=Y/ L and k= K/L ).
а.
b.
Briefly define what is derivative of y with respect to k or y' or ?
dk
dy
dy
> 0. Is it possible that
< 0 ? Why?
с.
Briefly explain why y' > 0 or =
dk
dk
d.
Briefly explain why y" < 0.
Find the elasticity of substitution between K and L. What does expansion path
е.
look like?
Transcribed Image Text:1. Assume that we have a Cobb-Douglas type aggregate production function in the form: Y = KªL® Find output per labor; capital per labor (y=Y/ L and k= K/L ). а. b. Briefly define what is derivative of y with respect to k or y' or ? dk dy dy > 0. Is it possible that < 0 ? Why? с. Briefly explain why y' > 0 or = dk dk d. Briefly explain why y" < 0. Find the elasticity of substitution between K and L. What does expansion path е. look like?
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