A consumer's utility function is -a u = x1x², where ₁ and 2 are the quantities consumed of goods one and two, respectively, and a is a parameter. Let p₁ and p2 denote the prices of goods one and two, respectively, so that the total expenditure in goods one and two is p₁1 + P2x2. The minimum expenditure that can be achieved subject to the constraint that the consumer achieves the level of utility ū is given by e = P₁P₂ 1-ªμа (this expression can be obtained by solving the corresponding constrained optimization problem). Calculate an approximation to the change in e due to increasing the level of utility by a small quantity d.

ENGR.ECONOMIC ANALYSIS
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Author:NEWNAN
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Chapter1: Making Economics Decisions
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A consumer's utility function is
-a
u = x1x²,
where ₁ and 2 are the quantities consumed of goods one and two, respectively,
and a is a parameter. Let p₁ and p2 denote the prices of goods one and two,
respectively, so that the total expenditure in goods one and two is p₁1 + P2x2.
The minimum expenditure that can be achieved subject to the constraint that the
consumer achieves the level of utility ū is given by
e = pip₂
1-ªuа
(this expression can be obtained by solving the corresponding constrained
optimization problem). Calculate an approximation to the change in e due to
increasing the level of utility by a small quantity d.
Transcribed Image Text:A consumer's utility function is -a u = x1x², where ₁ and 2 are the quantities consumed of goods one and two, respectively, and a is a parameter. Let p₁ and p2 denote the prices of goods one and two, respectively, so that the total expenditure in goods one and two is p₁1 + P2x2. The minimum expenditure that can be achieved subject to the constraint that the consumer achieves the level of utility ū is given by e = pip₂ 1-ªuа (this expression can be obtained by solving the corresponding constrained optimization problem). Calculate an approximation to the change in e due to increasing the level of utility by a small quantity d.
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