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If the utility function of an individual takes the form:
U = U ( x 1, x2) = (x1 + 2) 2 (x2 + 3) 3
Where U is total utility, and x1 and x2 are the quantities of two commoditiies consumed:
(a) Find the marginal-utility function of each of the two commodities
(b) Find the value of the
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- What is the marginal utility per dollar spent on the 6th strawberry? Which of the combinations of strawberries and apples satisfies the following rule? How do you know?For normal goodsA) the substitution effect of a price decrease will decrease the quantity of the good demanded while theincome effect of a price decrease will increase the quantity of the good demanded.B) the substitution and income effects of a price decrease will both increase the quantity of the gooddemanded.C) the substitution and income effects of a price decrease will both decrease the quantity of the gooddemanded.D) the substitution effect of a price decrease will increase the quantity of the good demanded while theincome effect of a price decrease will decrease the quantity of the good demanded.Suppose that U(f,c) = f + 8c^(1/2)is a utility function that describes Amelia’s preferences over two goods: fish(f)and custard (c). For the following, think of fish as the good graphed on the horizontal axis.a. Derive an expression for her marginal utility (Uf)from a small increase in f holding c fixed. Also find themarginal utility for custard (Uc).b. What is Amelia’s marginal rate of substitution (MRS)? Give a brief (2 sentences maximum) intuitivedescription of what MRS represents. If Amelia has 4 units of custard, holding her utility constant, howmany units of custard would she be willing to give up in order to get one more unit of fish?c. Graph Amelia’s indifference curve for a utility level of 40. Be sure to specify at least 3 bundles of goodson the indifference curve.d. Does the fact that Amelia’s indifference curve intersects with the custard axis violate any of the 5properties of indifference curves? Briefly support your answer.e. Give another utility function that represents…
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- 1 Marginal utility and marginal rate of substitution Suppose an individual who derives utility u(x, y) from consuming a units of good X and y units of good Y. For each of the following utility functions, derive the marginal utility of good X, the marginal utility of good Y, and the marginal rate of substitution between X and Y. (A) u(x, y) = x+by¹/3 (B) u(x, y) = (xy) (C) u(x, y) = ax + xy + by² (D) u(x, y) = n(ax + y) 1 (E) u(x, y) = (x² + √y²) = 21. Doug consumes two goods, electricity, e, and a composite commodity z. Doug has the following utility function: U = z²-e Last week, he clicked on a Facebook ad and got free solar panels put on his roof! Now Doug has solar panels on his roof that generate 50 units of electricity per day. For the going price of electricity, if Doug demands more than 50 units of electricity, he can buy more at that price. If he demands less than 50 units, he can sell the extra electricity (50 - his consumption) back to the grid, and earn the going price as extra income. a. What are his Marshallian demand functions for e and z? b. Currently, Doug's income is $100 per day, the price of z is $1 and the price of electricity is $0.50. How much electricity is he consuming and what is his utility? (note, the utility numbers may get a bit large). C Calculate quantity demanded for electricity and his utility if the price of electricity rises to $1. And then calculate the quantity demanded and utility when the…Let the following table represents the total utility of a given consumer, in the cardinal utility approach A) Calculate the MUx and MUy and fill the table in the 4th and 5th rows. B) If the two products (X&Y) are free goods how many of X and Y should the cons consumer take to maximize utility? C) What is the maximum utility of X and Y if they are free?. D) Assuming the consumer has any amount of money (enough budget) how many of X and Y should the consumer buy, to maximize utility? E) What is the total utility of X and Y? F) Let now price of X is 4 birr per unit and price of Y is 2 birr per unit and budget of the consumer for consumption of X and Y is 20 birr. Given budget constraint how many of X and Y should the consumer buy to maximize utility? G) What are the total utility of X and Y
- Define Economic utilityFor each of the following utility functions get the marginal utility of consumption of each of the goods. 1/2 1/2 (a) u(a,b) = a b (b) u(x, y) = x³/4y1/4 (c) u(a, b) = n(a) + In(x) (d) u(x, y) = ln(x) + ln(y) (e) u(a, b) = 2xa +XbQ1. a) Complete the table below: Quantity of Cheese Cakes (slices per day) Total Utility (TU) Marginal Utility (MU) 1 20 2 36 3 48 4 55 5 50 i) After how many slices do you get bored of Cheese cakes? ii) After how many slices do you feel sick? b) Using the values from the above table, “Plot” (on separate graphs) i) Total Utility ii) Marginal Utility graphs Q2. You drink only Coffee or Orange juice Price of Coffee (dollars per cup) Marginal Utility of Coffee (for 1st cup) Price of Orange Juice (dollars per glass) Marginal Utility of Orange Juice (for 1st glass) $3 60 $2 50 a) Calculate the MU per dollar for Coffee b) Calculate the MU per dollar for Orange Juice c) If you have 1 cup of Coffee and 1 glass of Orange juice, are you in Equilibrium? Explain briefly. d) If not, how should you change your consumption of these 2 items?
