Suppose the consumer's utility is given by u(x) = x² + (1 + x2)², and their income and prices are given by (m, p₁, P2) = (10, 2, 3). In what follows, you may take it for granted that the consumer has some optimal solution to the consumer's problem. (a) Given € X, write a formula for the marginal utilities MU₁(x) and MU₂(x). (b) Show that they will optimally spend all their money. (c) A unique bundle r exists such that the consumer spends all their money (pr m) and their per-price marginal utility is the same for the two goods (MU₁(¹) — MU₂(¹)). What is it? P2
Suppose the consumer's utility is given by u(x) = x² + (1 + x2)², and their income and prices are given by (m, p₁, P2) = (10, 2, 3). In what follows, you may take it for granted that the consumer has some optimal solution to the consumer's problem. (a) Given € X, write a formula for the marginal utilities MU₁(x) and MU₂(x). (b) Show that they will optimally spend all their money. (c) A unique bundle r exists such that the consumer spends all their money (pr m) and their per-price marginal utility is the same for the two goods (MU₁(¹) — MU₂(¹)). What is it? P2
Chapter6: Consumer Choice And Demand
Section: Chapter Questions
Problem 2.5P
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Question
![5. [This question demonstrates how blindly using calculus can lead us astray.]
Suppose the consumer's utility is given by u(x) x² + (1 + 2)², and their
income and prices are given by (m, p1, p2) (10, 2, 3). In what follows, you
may take it for granted that the consumer has some optimal solution to the
consumer's problem.
=
(a) Given r E X, write a formula for the marginal utilities MU₁(x) and
MU₂(x).
(b) Show that they will optimally spend all their money.
(c) A unique bundle r exists such that the consumer spends all their money
(pr = m) and their per-price marginal utility is the same for the two
MU₂(2)). What is it?
goods (MU(z)
P1
P2
(d) What is the consumer's optimal bundle from her budget set?
=](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffd86cda1-af2d-4585-b012-7ab18b7ef9b3%2F0b53c52e-036f-4c34-98b8-ec280ba9ad6c%2F8t0chpf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:5. [This question demonstrates how blindly using calculus can lead us astray.]
Suppose the consumer's utility is given by u(x) x² + (1 + 2)², and their
income and prices are given by (m, p1, p2) (10, 2, 3). In what follows, you
may take it for granted that the consumer has some optimal solution to the
consumer's problem.
=
(a) Given r E X, write a formula for the marginal utilities MU₁(x) and
MU₂(x).
(b) Show that they will optimally spend all their money.
(c) A unique bundle r exists such that the consumer spends all their money
(pr = m) and their per-price marginal utility is the same for the two
MU₂(2)). What is it?
goods (MU(z)
P1
P2
(d) What is the consumer's optimal bundle from her budget set?
=
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