Suppose Ann likes both pancakes (P) and waffles (W) and is always willing to substitute twopancakes for one waffle.Write the equation for Ann's utility function.a.b.Given her preferences, what is Ann's marginal utility of an additionalpancake? What is Ann's marginal utility of an additional waffle?с.With pancakes on the horizontal axis and waffles on the vertical axis, graphAnn's indifference curves for U=4 and U=8.d.What is Ann's marginal rate of substitution?

There is two goods pancakes (P) and waffles (W), they are substitute to each other. Ann is willing…

Answered: Suppose Ann likes both pancakes (P) and…

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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1. In a simple but delicious world, Joey eats only sandwiches, s, and jam, j. He has a Cobb-Douglas utility function U(j, s) = Nj1-asª, where 0 0. The price of jam is pj, the price of sandwiches is Ps, and Joey has a monthly budget Y to spend on lunch. a. Explain why you can safely use a simpler Cobb-Douglas utility function, V(j, s), to represent Joey's preferences, which is the same as U(j, s) except for replacing N with 1. b. Transform V(j,s) by taking natural logs and bringing down exponents. Explain why it is useful to do this for a Cobb-Douglas utility function, but not for a quasi-linear utility function. Use In(V(j, s)) and the substitution method to derive the formulas for Joey's optimal amount of jam, j*, and sandwiches, s*, to buy and consume per month. Simplify your answers so that you arrive at the С. (1-a)Y aY formulas j* = and s* Ps d. What fraction of his income does Joey spend on jam, and what fraction on sandwiches?
b. A consumer purchases two goods, the amounts of which are x and y. Her marginal utility of consuming good x is Ux , while that of consuming good ? is Uy. If the two marginal utility functions are given by Ux = y2 + 2xy and Uy = 4xy + 3x2 − 3 and the consumer is known to stay on the same utility curve, find the total utility function of this consumer buying the two goods
1. Jim's preferences for pears and apples can be summarized by the following utility function: U(Xa,Xp)=XaXp where xa is the quantity of apples and xp is the quantity of pears. a) Draw an indifference curve for Jim by calculating a series of bundles that all produce the same level of "utility" and plotting them. Interpret the slope of the indifference curve (the marginal rate of substitution). b) Calculate the formula for Jim's marginal rate of substitution, as a function of apples and pears consumed.¹ c) What happens to the numeric value of Jim's marginal rate of substitution along an indifference curve (i.e., holds his utility constant) as he increases the number of pears he consumes and decreases the number of apples? For example, compare his MRS for a bundle consisting of 9 apples and 4 pears to his MRS for a bundle consisting of 9 pears and 4 apples and interpret the change. d) Suppose something increases Jim's desire for apples (for example, apples are found to reduce the risk of…
2. Utility function: U(X,Y)= 2XY* Budget Constraint: 2X +4Y = 80 a. Calculate the utility maximizing amount of X and Y.
Answer the following short questions:a. Suppose that a consumer’s preferences between goods x andy are represented by the utility function u(x, y) = x^2 + 16xy + 64y^2. If these two goods have the same price, describe the optimal consumptionchoice of this consumer.b. Suppose that when the price of a good change, the incomeand substitution effects change the consumer’s demand for that goodin opposite directions.i. Is this good a normal or an inferior good? Explain.ii. Is this good a Giffen or an ordinary good? Explain.c. Is the following statement true or false? The differencebetween a monopolist’s marginal cost and its profit-maximizing price issmaller when the demand is more elastic.
The following figure shows the indifference curves and two budget line of student Tuna whose choices are apple and banana. The Initial price of Banana is €4/kg, when budget line is B1. Initially Tuna was at equilibrium at point A. Answer the following questions according to the information given on the diagram. Show your calculations below. a. What is the weekly Income of Tuna? (). b. If Tuna's initial preference is at A how much Banana she consumes? (" c. If Price of Banana decreases to €3/kg and she moves to point B, how much Apple she will consume at B? (. d. If the demand curve for Banana will be derived by using the indifference curves on figure 1, what will be the Price and quantity coordinates of Point A and Point B on figure 2? Apples Price Bananas Quantity
Your Graph Score: 100% ed 140 Price 130 120 110 100 90 80- 70 The Market S 60- 50 40- 30 20 D 10 0 0 60 120 180 240 300 360 420 Quantity b) At the price of $130, the market will experience excess supply in the amount of 300 units. c) At the price of $20, the market will experience excess demand in the amount of 60 units.
3
Cobb-Douglas Preferences] Asad lives in a world with two goods (N=2), apples and bananas. He has a Cobb-Douglas utility function over these goods U(a, b) = a 0.7 b 0.3 . Asad has an income I = 200, and faces prices pa = 2, pb = 1 (a) We know that if Asad is optimizing (and consumes a bundle that contains both apples and bananas), that the slope of the budget constraint should be equal to his MRS. Use this and his budget constraint to solve for his optimal bundle. (b) Suppose the price of apples rises to 4, and the price of bananas rises to 3. What is his new optimal consumption bundle? (c) Suppose Asad instead had a utility function given by U(a, b) = a 1.4 b 0.6 + 1. Given the same prices and income as in part (b), what is his optimal bundle?
!
Bob views apples and oranges as perfect substitutes in his consumption, and MRS = 1 for all combinations of the two goods in his indifference map. Suppose the price of apples is €2 per pound, the price of oranges is €3 per pound, and Bob's budget is $24 per week. What is Bob's utility maximizing choice between these two goods? A. 12 pounds of apples and no oranges B. 8 pounds of oranges and no apples C. 4 pounds of oranges and 6 pounds of apples D. 12 pounds of oranges and no apples Fiona uses her entire budget to purchase food and clothing. The price of food is €1 per unit and the price of clothing is €2 per unit. Fiona's marginal utility from food is 2 and her marginal utility from clothing is 6. She currently spends all her money on food and clothing. Her objective is to maximise her utility. Which of the following statements is correct? Fiona should buy more food and more clothing. A. B. C. D. E. Fiona is currently maximsing her utility and should continue to consume her current…

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