A firm operates with a Cobb-Douglas Production function: Q = 12K0.4L0.4 where K is units of capital, and L is number of laborers. To produce an output, the firm must pay $40 per unit of capital, and $5 per laborer. However, the firm has a budget of $800 only to spend for labor cost and capital cost.

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter10: Cost Functions
Section: Chapter Questions
Problem 10.3P
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Constrained Optimization: Cobb-Douglas Production Function  

A firm operates with a Cobb-Douglas Production function:

Q = 12K 0.4L 0.4

where K is units of capital, and L is number of laborers.

To produce an output, the firm must pay $40 per unit of capital, and $5 per laborer. However, the firm has a budget of $800 only to spend for labor cost and capital cost.


1. Using your knowledge of the tangency condition in Producer’s theory, find the combination of K and L that the firm should use to produce the maximum possible output. Do not solve the problem using the Lagrangian method. Note: The tangency conditions just states that the slope of the production function must be equal to the slope of the isocost function.

A firm operates with a Cobb-Douglas Production function:
Q = 12K0.4L0.4
where K is units of capital, and L is number of laborers. To produce an output, the firm must pay
$40 per unit of capital, and $5 per laborer. However, the firm has a budget of $800 only to spend
for labor cost and capital cost.
Transcribed Image Text:A firm operates with a Cobb-Douglas Production function: Q = 12K0.4L0.4 where K is units of capital, and L is number of laborers. To produce an output, the firm must pay $40 per unit of capital, and $5 per laborer. However, the firm has a budget of $800 only to spend for labor cost and capital cost.
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