Assume that Sam has following utility function: U(x,y) = 2√x+y.
Assume px = 1/5, py = 1 and her income I = 10.
(e) Draw an optimal bundle which is the result of utility maximization under given budget set. (Hint: Assume interior solution). Define corresponding expenditure minimization problem (note the elements for expenditure minimization problem are (i) objective function, (ii) constraint, (iii) what to choose).
(f)Describeaboutwhatthedualityproblemis.
Definemarshalliandemandfuction andhicksiandemandfunction. (Hint:
identifytheinputfactorsofthesefunctions.)
(g) Consider a price increase for the good x from px = 1/5 to p0x = 1/2. Find new optimal bundle under new price using a graph that shows the change in budget set and the change in optimal bundle when the price increases.
(h)Following(g),find the utility level of optimal bundle under old price. Similarly, find the utility level of optimal bundle under new price.
(i)Describe substitution effect and income effect with a graph for the price change from px = 1/5 to p0x = 1/2.
(j) Describe three different measures (from the lecture) to evaluate welfare change from a price change.
(k) Following (g), show that these three measures are the same using a graph (or an algebra).
Assume that Sam has following utility function: U(x,y) = 2√x+y. Assume px = 1/5, py = 1 and her i...
4. Andy's utility is represented by the function U(X,Y) - XY. His marginal utility of X is MUx = Y. His marginal utility of Y is MUY = . He has income $12. When the prices are Px - 1 and Py -1, Andy's optimal consumption bundle is X* -6 and Y' = 6. When the prices are Px = 1 and P, = 4, Andy's optimal consumption bundle is X** = 6 and Y* 1.5. Suppose the price of...
1. (24 total points) Suppose a consumer’s utility function is given by U(X,Y) = X1/2*Y1/2. Also, the consumer has $72 to spend, and the price of Good X, PX = $4. Let Good Y be a composite good whose price is PY = $1. So on the Y-axis, we are graphing the amount of money that the consumer has available to spend on all other goods for any given value of X. a) (2 points) How much X and Y...
2. Consider the Cobb-Douglas utility function u(x,y) = x2y2. Let the budget 1, where pr, py are the prices and I denotes the constraint be prx + pyy income. (a) Write the Lagrangian for this utility maximization problem. (b) Solve the first-order conditions to find the demand functions for both good a and good y. [Hint: Your results should only depend on the pa- rameters pa, Py, I.] (c) In the optimal consumption bundle, how much money is spend on...
Given a utility function U(x,y) = xy. The price of x is Px, while the price of y is Py. The income is I. Suppose at period 0, Px = Py = $1 and income = $8. At period 1, price of x (Px) is changed to $4. Compute the price effect, substitution effect, and income effect for good x from the price change.
A) Suppose U = min[X, 3Y] and I=12, Px=1 and Py=5. Find X* and Y*. B) Draw an indifference curve and a normal linear budget constraint such that there is a tangency point (where MRS= price ratio) that is not the optimal bundle. C) Suppose U=X∙Y5. Find X* and Y*. D) Suppose U = 5∙X + 2∙Y and I=12, Px=2 and Py=1. Find X* and Y*.
Suppose James derives utility from two goods {x,y}, characterised by the following utility function: $u(x, y) = 2sqrt{x} + y$: his wealth is w = 10 let py = 1: (a) What is his optimal basket if px = 0.50? What is her utility? (b) What is his optimal basket and utility if px = 0.20? (c) Find the substitution effect and the income effect associated with the price change. (d) What is the change in consumer surplus? Suppose Linda...
Given a utility function U=(x+2)(y+1) and Px = 4, Py = 6, and budget B = 130: a) Write the Lagrangian function; b) Find the optimal levels of purchases x* and y*; c) Is the second-order sufficient condition for maximum satisfied?
2. Jane's utility function has the following form: U (1,y) = 3x2 +2.ry The prices of cand y are p, and Py respectively. Jane's income is I. (a) Find the Marshallian demands for and y and the indirect utility function. (b) Without solving the cost minimization problem, recover the Hicksian de mands for x and y and the expenditure function from the Marshallian demands and the indirect utility function. (c) Write down the Slutsky equation determining the effect of a...
i need help with (b) and (c)!!! thank u!!!! Jeanette has the following utility function: U= a*In(x) + b*In(y), where a+b=1 a) For a given amount of income I, and prices Px. Py, find Jeanette's Marshallian demand functions for X and Y and her indirect utility function. (6 points) b) From now on, you can use the fact that the utility parameters are a=0.2 and b=0.8. Find the Hicksian demand functions and the corresponding expenditure function. (6 points) c) Suppose...
1. Suppose a consumer has the utility function over goods x and y u(x, y) = 3x}}} (a) Setup the utility maximization problem for this consumer using the general budget con- straint. (2 points) (b) Will the constraint be active/binding? Is the sufficient condition for interior solution satisfied? Prove your answers. (4 points) (c) Solve the utility maximization problem for the Marshallian demand equations x (Px, py,m) and y* (Px, Py,m). Show all of your work and circle your final...