(b) A consumer has $280 to spend on two commodities, the first of which costs $2 per unit and the second $5 per unit. Suppose that the utility derived by the consumer from x units of the first commodity and y units of the second is given by U(x,y) = 100x0.25y0.75 How many units of each commodity should the consumer buy to maximize utility? Compute the Lagrange multiplier a and interpret in economic terms.
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- Mr Banda faces the following utility function from consuming nshima [X] and Rice [Y] U = 3XY 1 3 Mr Banda’s budget allocation for nshima and rice is K240. The price of nshima is K60 per Kg while that of Rice is K20 per Kg. A. How much nshima and rice should Mr. Banda consume to maximize his utility and What is the total utility at the optimum? b. What is the Lagrange multiplier? c. What will be the increase in utility when the budget allocation is increased to K241?The utility derived by a consumer from the consumption of two commodities is given by the function U (A, B) = 0.5In (A) + 0.5 In (B) where A are the number of units of the first commodity consumed and B are the number of units of the second commodity consumed each month. A unit of the first commodity costs $8 and a unit of the second commodity costs $ 4 using the Lagrange multiplier method determine the optimal quantity of each of the commodities consumed each month given that consumer has $32 to spend on both commodities each monthZeynep lives on an island where she produces two goods, apples (x) and bananas (y), according to the production possibility frontier 200 = x² + y², and she consumes all the goods herself. Her utility function is U(x,y) = xy³. Find her utility maximizing x and y as well as the value of ? (Lagrange multiplier).
- Felice lives and works for two periods. In the first period, she earns 520 coconuts and in the second period, she earns 570 coconuts. In each period, she pays 20 coconuts in taxes.a. Suppose that Felice can save or borrow from a bank at the same interest rate of 10%. Suppose also that she likes to consume today 240 coconuts. Draw herbudget constraint including both intercepts, her endowment point including its coordinates, and use an indifference curve to show her optimal consumption point and its coordinates.b. Suppose that the government cuts taxes by 10 coconuts. What will the government have to do to taxes in the future period to meet its lifetime budget constraint?c. What is the effect of the government’s action on Felice’s lifetime wealth, budget constraint and endowment point? Show and explain.d. What is the effect of the tax cut on her current consumption and welfare? Does the Ricardian equivalence hold? Explain!e. Now suppose that the economy enters a recession, and some…A consumer has utility u(x,y,z)= ln(x) + 2ln(y) + 3ln(z) over the three goods, x,y and z and pZ = 1 . Optimally sheconsumes 30 units of z. What is her income? How much money does she spend on x?(HINT: MUX =??, MUY =??, MUZ =??and remember the “equivalent bang for the buck” condition)(b) Forget about (a). Suppose you have t = 29 hours in total to spend on 3 projects X, Y and Z to make some money.If you spend x hours on project X, you make 2√? dollars;If you spend y hours on project Y, you make ?√? dollars;If you spend z hours on project Z, you make ?√? dollars;Writing down your “utility function” u(x,y,z) and the constraint, solve the utility maximization problem; what isthe optimal amount of time to spend on x ? on y? on z ?Tom's income is 32. He consumes a single consumption good, C, which has a price of 2. His utility function depends on his marital status: when happily married, his utility is given byU=C^(1/2) When he is not married, his utility is given by U=0.5C^(1/2) a. Suppose that Tom is not currently married. What is his utility? Now suppose that Tom gets married.What is his utility? Assume Tom can spend all his income on his own consumption when he is married. b. Use compensating variation (CV) and equivalent variation (EV) to calculate the value of marriage to Tom. How do the two figures compare?
- 1.2) Suppose that a consumer’s utility function is U=10 lnx+20 lny. A) Find the marginal utility of x, MU_x, and the marginal utility of y, MU_y.B) Suppose that the consumer has R3600 to spend on x and y, while p_x=200 and p_y=400. C) Use the Lagrange multiplier (LM) method to find the levels of x and y that will maximise the consumer’s utility, subject to her budget constraint. D) Find and interpret the value of the Lagrange multiplier. Show that MRCS=p_x/p_y at the utility maximising levels of x and y.Ma1. Please give only typed answer. Assume the following expendiexpenditure function. (a) Interpret this function. In particular, what will happen to the optimal expenditure, if the consumer wanted to maintain a high level of utility? (b) Calculate Hicks demand for good 2. (c) Suppose that p1 = 1, p2 = 1 and that U = 28. Calculate and interpret the variation compensation if the price of good 2 increases by $1.A consumer has preferences on Amazon original shows (x), and the composite good (y) described as u(x,y) = x^2y (HINT: MUx = 2xy and MUy = x^2 ) and she has I = $300 budget in total. Assume py = $1, so we can think of y as the saved dollars in her pocket for other uses. Now, if she is not an amazon prime member, each show costs px = $10, but if she is a prime member, then px = $4. Amazon prime membership costs $120. (a) Draw her feasible budget set on the x-y axis for the no-prime-membership case, and the prime-membership case, separately. (b) If she chooses not to be a prime member, what is her optimal bundle (x,y) ? (c) If she chooses to become a prime member, what is her optimal bundle (x,y) ? (d) What is her optimal utility in (b)?in (c)? Would she want to become a prime member?
- A consumer is maximising her utility function: U(x, y) = (x¹/³+y¹/³)³, subject to the budget constraint x + 3y = 100. (a) Set up the Lagrangian function of this utility maximisation problem and derive the first-order conditions. (b) What are the utility maximizing amounts of x and y? Also, calculate the Lagrange multiplier. (c) What are the utility maximising amounts of x and y if the budget constraint changes to x + 3y = 50? Also, calculate the Lagrange multiplier.Columns 1 through 4 in the following table show the marginal utility, measured in utils, that Ricardo would get by purchasing various amounts of products A, B, C, and D. Column 5 shows the marginal utility Ricardo gets from saving. Assume that the prices of A, B, C, and D are, respectively, $18, $6, $4, and $24 and that Ricardo has an income of $106. a. What quantities of A, B, C, and D will Ricardo purchase in maximizing his utility? b. How many dollars will Ricardo choose to save? c. Check your answers by substituting them into the algebraic statement of the utility-maximizing rule.brownie has $100 that he can spend on milk and gas. A gallon of milk costs $5.However, government gives its citizens a coupon that entitles people to 20%discount on their first 10 gallon milk purchases. Gas costs $4 per gallon andgovernment charges $1 for each gallon of purchased gas. John’s utility functionis U (x, y) = 9x+10y, where x and y represent gallons of milk and gas consumed,respectively. What is John’s optimal consumption of milk and gas?Question 3 Part bIf government removes the quantity restriction to which the coupon applies (i.e.20% discount is applied to any quantity of milk purchased), what will be John’soptimal consumption?