a) What is the marginal rate of substitution in this case? b) What is the next step that we need to do to solve this problem? c) Given your answer to b) solve for x1 and x2.

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Chapter6: Consumer Choice And Demand
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3) Consider a consumer who has preferences given by U(¤1, x2) = x2 +2/%1
(quasilinear utility), with
%3D
1
MUz
MU¤2 = 1,
where MU1 and MU-2 are the marginal utility of x1 and x2, respectively.
Normalizing the price of good 2 to 1, the budget constraint is given by
y = P1X1+x2.
a) What is the marginal rate of substitution in this case?
b) What is the next step that we need to do to solve this problem?
c) Given your answer to b) solve for x1 and x2.
d) What are the (unrealistic) implications of quasilinear utility?
e) Suppose y = 10 and p1 = {1,2, 3}, what is the value of your utility in each
case?
f) Plot your indifference curves for each value labeling the graph, including
each axis, correctly.
How do the indifference curves shift with changes in the utility functions?
Does the consumer ever not consume good 1?
How about good 2?
What assumptions on income are required to ensure an interior solution (i.e.
both goods are consumed)?
Transcribed Image Text:3) Consider a consumer who has preferences given by U(¤1, x2) = x2 +2/%1 (quasilinear utility), with %3D 1 MUz MU¤2 = 1, where MU1 and MU-2 are the marginal utility of x1 and x2, respectively. Normalizing the price of good 2 to 1, the budget constraint is given by y = P1X1+x2. a) What is the marginal rate of substitution in this case? b) What is the next step that we need to do to solve this problem? c) Given your answer to b) solve for x1 and x2. d) What are the (unrealistic) implications of quasilinear utility? e) Suppose y = 10 and p1 = {1,2, 3}, what is the value of your utility in each case? f) Plot your indifference curves for each value labeling the graph, including each axis, correctly. How do the indifference curves shift with changes in the utility functions? Does the consumer ever not consume good 1? How about good 2? What assumptions on income are required to ensure an interior solution (i.e. both goods are consumed)?
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