Homework Answers
a)MU1= dU/dx1=4 and MU2= 2
B)MRS=- MU1 /MU2= -4/2=-2
C)
In this figure we can see indifference curve that is convex but only one as you can see in this graph
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2. Now consider u(x1, x2) = 2 In xỉ + In xz (a) Find expressions for...
2. Assume a consumer has as preference relation represented by u(x1, x2) = axi + bx2...
2. Assume a consumer has as preference relation represented by u(x1, x2) = axi + bx2 with x E C = R4, and a, b > 0. Answer the following: a. Show the preference relation this consumer is convex and strictly monotonic show preferences are not strictly convex for this consumer. b. Graph the indifference curves for this consumer. Now, solve for an explicit expression for the indiffence curve (i.e., x (x1; ū) i constructed in class for an indifference...
Consider the quadratic function f(x1, x2) = 3(xỉ + xz) + (1 + a)21&2 – 21...
Consider the quadratic function f(x1, x2) = 3(xỉ + xz) + (1 + a)21&2 – 21 – 22. a) Find all values of a for which f has a strict global minimum. b) Assume that the steepest decent method with the fixed stepsize t = is utilized for f. Find all values of a for which this method converges.
Luke's choice behavior can be represented by the utility function u(x1,x2)= x1 + x2
Luke's choice behavior can be represented by the utility function u(x1,x2)= x1 + x2.The prices of x1 and x2 are denoted as p1 and p2, and his income is m. 1. Draw at least three indifference curves and find its slope (i.e. MRS). Is the MRS changing depending on the points of (x1, x2) at which it is evaluated, or constant? 2. Draw a budget constraint assuming that p1 < P2. Find the optimal bundle (x1*,x2*) as a function of income and prices. 3....
Suppose Alex’s preferences are represented by u(x1,x2) = x1x32. The marginal utilities for this utility function...
Suppose Alex’s preferences are represented by u(x1,x2) = x1x32. The marginal utilities for this utility function are MU1 = x23 and MU2 = 3x1x22. (a) Show that Alex’s utility function belongs to a class of functions that are known to be well-behaved and strictly convex. (b) Find the MRS. [Note: find the MRS for the original utility function, not some monotonic transformation of it.] (c) Write down the tangency condition needed to find an optimal consumption bundle for well-behaved preferences....
1. Consider the following utility functions (a) For each of these utility functions: i. Find the...
1. Consider the following utility functions (a) For each of these utility functions: i. Find the marginal utility of each good. Are the preferences mono- tone? ii. Find the marginal rate of substitution (MRS) iii. Define an indifference curve. Show that each indifference curve (for some positive level of utility) is decreasing and convex. (b) For the utility function u2(x1, x2), can you find another utility function that represents the same preferences? Find the relevant monotone trans formation f(u) (c)...
1. Consider a utility function u(x1, x2) = x1 + (x2)^a where a > 0. (a)...
1. Consider a utility function u(x1, x2) = x1 + (x2)^a where a > 0. (a) Show that if a < 1, then preferences are convex. (b) Show that if a = 1, then preferences have perfect substitutes form. (c) Show that if a > 1, then preferences are concave. (d) For each case, explain how you would solve for the optimal bundle.
Question 2: Lorelai's choice behavior can be represented by the utility function u(x1, 2)0.9Inx)0.1x2 The prices...
Question 2: Lorelai's choice behavior can be represented by the utility function u(x1, 2)0.9Inx)0.1x2 The prices of both x1 and x2 are $5 and she has an income of $40. 1. What preference does this utility function represent? (Hint: the utility is function is not linear, 2. Drawinwg indifference curves: you can copy down the graph on your paper using econgraphs. Set but at least linear in good x2) the preferences and parameters accordingly as given in the question. Click...
Lorelai's choice behavior can be represented by the utility function u(x1, 2) 0.9n(x)0.1x2. The prices of...
Lorelai's choice behavior can be represented by the utility function u(x1, 2) 0.9n(x)0.1x2. The prices of both xi and x2 are $5 and she has an income of $40. 1. What preference does this utility function represent? (Hint: the utility is function is not linear, but at least linear in good x2) 2. Drawinwg indifference curves: you can copy down the graph on your paper using econgraphs. Set the preferences and parameters accordingly as given in the question. Click on...
Suppose a consumer has quasi-linear utility: u(x1, x2) = 3.01 + x2. The marginal utilities are...
Suppose a consumer has quasi-linear utility: u(x1, x2) = 3.01 + x2. The marginal utilities are MU(X) = 2x7"! and MU2:) = 1. Throughout this problem, assume P2 = 1. (a) Sketch an indifference curve for these preferences (label axes and intercepts). (b) Compute the marginal rate of substitution. (c) Assume w> . Find the optimal bundle (this will be a function of pı and w). Why do we need the assumption w> (d) Sketch the demand function for good...
Consider the expected utility function 71u (21) + Tzu (22). Let x2 = f (x1, U)...
Consider the expected utility function 71u (21) + Tzu (22). Let x2 = f (x1, U) describe an indifference curve for this utility function, so that hju (x1) + Tzu (f (x1,U)) = U. Differentiate this expression with respect to x1 to find the slope of an indifference curve. Find the slope of this indifference curve when x1 = 22. Explain why it has this slope.
2. Assume a consumer has as preference relation represented by u(x1, x2) = axi + bx2 with x E C = R4, and a, b > 0. Answer the following: a. Show the preference relation this consumer is convex and strictly monotonic show preferences are not strictly convex for this consumer. b. Graph the indifference curves for this consumer. Now, solve for an explicit expression for the indiffence curve (i.e., x (x1; ū) i constructed in class for an indifference...
Consider the quadratic function f(x1, x2) = 3(xỉ + xz) + (1 + a)21&2 – 21 – 22. a) Find all values of a for which f has a strict global minimum. b) Assume that the steepest decent method with the fixed stepsize t = is utilized for f. Find all values of a for which this method converges.
1. Consider the following utility functions (a) For each of these utility functions: i. Find the marginal utility of each good. Are the preferences mono- tone? ii. Find the marginal rate of substitution (MRS) iii. Define an indifference curve. Show that each indifference curve (for some positive level of utility) is decreasing and convex. (b) For the utility function u2(x1, x2), can you find another utility function that represents the same preferences? Find the relevant monotone trans formation f(u) (c)...
Question 2: Lorelai's choice behavior can be represented by the utility function u(x1, 2)0.9Inx)0.1x2 The prices of both x1 and x2 are $5 and she has an income of $40. 1. What preference does this utility function represent? (Hint: the utility is function is not linear, 2. Drawinwg indifference curves: you can copy down the graph on your paper using econgraphs. Set but at least linear in good x2) the preferences and parameters accordingly as given in the question. Click...
Lorelai's choice behavior can be represented by the utility function u(x1, 2) 0.9n(x)0.1x2. The prices of both xi and x2 are $5 and she has an income of $40. 1. What preference does this utility function represent? (Hint: the utility is function is not linear, but at least linear in good x2) 2. Drawinwg indifference curves: you can copy down the graph on your paper using econgraphs. Set the preferences and parameters accordingly as given in the question. Click on...
Suppose a consumer has quasi-linear utility: u(x1, x2) = 3.01 + x2. The marginal utilities are MU(X) = 2x7"! and MU2:) = 1. Throughout this problem, assume P2 = 1. (a) Sketch an indifference curve for these preferences (label axes and intercepts). (b) Compute the marginal rate of substitution. (c) Assume w> . Find the optimal bundle (this will be a function of pı and w). Why do we need the assumption w> (d) Sketch the demand function for good...
Consider the expected utility function 71u (21) + Tzu (22). Let x2 = f (x1, U) describe an indifference curve for this utility function, so that hju (x1) + Tzu (f (x1,U)) = U. Differentiate this expression with respect to x1 to find the slope of an indifference curve. Find the slope of this indifference curve when x1 = 22. Explain why it has this slope.
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