Consider the consumer problem with two goods, apples and oranges. Let x be the amount of apples and y be the amount of oranges, and let u(x, y) = 2√x + y be the utility function of the consumer. Let på be the price of apples, py be price of oranges, and I be the income of the consumer. (a) Using the condition that the MRS is equal to the relative prices, that is, Px ди/дх ди/ду Py derive the demand functions of apples and oranges.

Microeconomic Theory
12th Edition
ISBN:9781337517942
Author:NICHOLSON
Publisher:NICHOLSON
Chapter6: Demand Relationships Among Goods
Section: Chapter Questions
Problem 6.9P
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1. Consider the consumer problem
with two goods, apples
and oranges. Let x be the amount of apples and y be the amount of oranges, and
let u(x, y) = 2√x + y be the utility function of the consumer. Let på be the price
of apples, py be price of oranges, and I be the income of the consumer.
(a) Using the condition that the MRS is equal to the relative prices, that is,
Px
ди/дх
ди/ду Py
2
derive the demand functions of apples and oranges.
(b) Even though the demand function of apples does not explicitly contain I, it is
assumed that I cannot be too small. Explain why this assumption is necessary.
=
(c) Let I
90 and suppose that py = 6. Consider a price increase of apples
from 2 to 3 that leaves the price of oranges unchanged at 6. Calculate the
substitution effect and the income effect from this price change regarding the
demand for apples.
Transcribed Image Text:1. Consider the consumer problem with two goods, apples and oranges. Let x be the amount of apples and y be the amount of oranges, and let u(x, y) = 2√x + y be the utility function of the consumer. Let på be the price of apples, py be price of oranges, and I be the income of the consumer. (a) Using the condition that the MRS is equal to the relative prices, that is, Px ди/дх ди/ду Py 2 derive the demand functions of apples and oranges. (b) Even though the demand function of apples does not explicitly contain I, it is assumed that I cannot be too small. Explain why this assumption is necessary. = (c) Let I 90 and suppose that py = 6. Consider a price increase of apples from 2 to 3 that leaves the price of oranges unchanged at 6. Calculate the substitution effect and the income effect from this price change regarding the demand for apples.
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