Suppose you have the utility function of u(x1, x2) = x1x2 and a budget constraint of p1x1 + p2x2 m. Use this information to answer the following questions: (a) What is the Lagrangian for this constrained optimization problem? (b) In the last homework you found that the optimal amount of x *1 was m/2p1 and the optimal amount of x* 2 was m/2p2. How would you find this using the Lagrangian method? Show your work. (c) What do you notice about these two demand functions as their respective prices increase?

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter2: Mathematics For Microeconomics
Section: Chapter Questions
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Suppose you have the utility function of u(x1, x2) = x1x2 and a budget constraint of p1x1 + p2x2 m. Use this information to answer the following questions:
(a) What is the Lagrangian for this constrained optimization problem?
(b) In the last homework you found that the optimal amount of x
*1 was m/2p1 and the optimal amount of x* 2 was m/2p2. How would you find this using the Lagrangian method? Show your work.
(c) What do you notice about these two demand functions as their respective
prices increase?
Transcribed Image Text:Suppose you have the utility function of u(x1, x2) = x1x2 and a budget constraint of p1x1 + p2x2 m. Use this information to answer the following questions: (a) What is the Lagrangian for this constrained optimization problem? (b) In the last homework you found that the optimal amount of x *1 was m/2p1 and the optimal amount of x* 2 was m/2p2. How would you find this using the Lagrangian method? Show your work. (c) What do you notice about these two demand functions as their respective prices increase?
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