2B. The preference relation of a consumer is representable by an utility function u(z, y) competitive price system changes from an imitial p = (2, 1) to p' (1,1) then the Slutsky substitution effect concerning the demand of the first good (in absolute value) is (a) 500 (b) 100 (c) 0 (d) 80/3 (e) none of the previous four statements is correct. min {, y}, while his wealth amounts to m = 100. If the

2B. The preference relation of a consumer is representable by an utility function u(z, y) competitive price system changes from an imitial p = (2, 1) to p' (1,1) then the Slutsky substitution effect concerning the demand of the first good (in absolute value) is (a) 500 (b) 100 (c) 0 (d) 80/3 (e) none of the previous four statements is correct. min {, y}, while his wealth amounts to m = 100. If the

Microeconomic Theory

12th Edition

ISBN:9781337517942

Author:NICHOLSON

Publisher:NICHOLSON

Chapter3: Preferences And Utility

Section: Chapter Questions

Problem 3.3P

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3- Assuming that the equation F(U, x, X2 = f(x1, x2,, ... Xn): ******* **** ,xn) = 0 implicitly defines a utilityfunction U 073 a) Find the expressions for 60, 6U and 6x4 " 3 6x2 6xn 6x2 6xn b) Interpret their respective economic meanings. c) Now. assume the utility function is U(x, y) = y√x. Does the consumer believe that more is better for each good? Do the consumer's preferences exhibit a diminishing marginal utility of x? Is the marginal utility of y diminishing?
2) Which of the following utility functions represent the same preferences? Explain. a) U (x₁, x₂) = X₁ X₂ b) W (x₁, x₂) = 5lnx₁ +5lnx₂ c) V (x₁, x₂) = x₁¹/3x₂ ¹/3 - 0.8 d) Z(x₁, x₂) = 0.5x₁ + 0.5x₂
2. Consider a consumer whose preference relation over the consumption set X = R can be repre- sented by the utility function: u (x1, x2, 13) = A (x1 – T1)ª (x2 – ã2)° (x3 – ã3)" - where A, a, B and y are all strictly positive. (a) Why can you assume A = 1 and a + B+y= 1 without loss of generality? Do so for the rest of the question. (b) Solve the UMP and derive the consumer's Walrasian demand. (c) Find the indirect utility function, the minimum expenditure function, and the Hicksian demand function.
a good is normal, then an increase in the price of the good will lead to which of the following to be true for this good? (Assume that there are only two goods, the individual's preferences lead to well-behaved preferences with strictly convex indifference curves and an interior solution for all budgets). Let SE = substitution effect, IE = income effect) (a) The magnitude of the IE for this good must be larger than the magnitude of the SE (b) The magnitude of the SE for this good must be larger than the magnitude of the IE (c) The good could be a Giffen good d) The good must be an ordinary good ( (e) None of the above
Moe's income is $320 per week and he spends it on two goods, X and Y. Good X costs $8 and good Y costs $4 per unit. His utility function is U = 4.5XY. (a) Calculate Moe's utility-maximizing purchases of X and Y. (b) Calculate Moe's constrained utility- maximum if his income decreases by $2.00? (c) If the price of Y doubles, with no change in the price of X, by how much would his income have to increase to enable him to maintain his initial level of utility (as in part (a) above)?
A utility function is given by the equation U = 20xe¬0.1x, where x is the number of glasses of wine consumed. (a) Show that this utility function has a maximum value and calculate the maximum utility. (b) Describe how marginal utility changes for glasses of wine consumed after the maximum utility is reached. Do you consider this reasonable? Give an explanation.
5.
7. Consider a consumer whose utility function over good 1 and good 2 is given by u(x1,x2) = x2 – xị. (a) Does the preference represented by this utility function satisfy the mono- tonicity assumption? (b) Suppose the consumer has income I = 100 and faces prices p1 =1 and p2 = 2. Find the consumer's optimal consumption bundle (utility-maximizing bundle). (c) For what prices will the consumer consume strictly positive amount of both goods? Interpret this result.
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