1. Consider a two-period model in which you work and save in the initial period (period 0) and live off savings and the interest from savings in retirement (period 1). Suppose that income in period 0 is $250,000, income in period 1 is $0, and the interest rate is 50%. a. Draw the budget line. b. Draw an indifference curve consistent with a person whose preferences causes them to equalize their consumption in period 0 and period 1. c. Savings are $ d. Draw the after-tax budget line if a personal income tax is introduced with a marginal tax rate of t= 40%. e. Suppose that preferences are such that after tax consumption is equalized in period 0 and period 1. On the diagram show after-tax savings. С1 (S x 1,000) 450 400 350 300 250 200 150 100 50 25 50 75 100 125 150 175 200 225 250 275 300 325 350 Cо (S x 1,000)

1. Consider a two-period model in which you work and save in the initial period (period 0) and live off savings and the interest from savings in retirement (period 1). Suppose that income in period 0 is $250,000, income in period 1 is $0, and the interest rate is 50%. a. Draw the budget line. b. Draw an indifference curve consistent with a person whose preferences causes them to equalize their consumption in period 0 and period 1. c. Savings are $ d. Draw the after-tax budget line if a personal income tax is introduced with a marginal tax rate of t= 40%. e. Suppose that preferences are such that after tax consumption is equalized in period 0 and period 1. On the diagram show after-tax savings. С1 (S x 1,000) 450 400 350 300 250 200 150 100 50 25 50 75 100 125 150 175 200 225 250 275 300 325 350 Cо (S x 1,000)

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Consider an economy with two periods (interpreted as “when young” and “when old” periods)and two consumers, Gillian Davis and Joana Wolinsky. Gillian is a star ballet dancer with a lifetime income given by ωG= (400,0). Joana is an Econ Ph.D. student with incomeωJ= (0,400). Gillian and Joana have identical utility functions given by Ui(x1,x2) = 6 lnx1+ 3 lnx2 for i=G, J a) Plot an Edgeworth box and mark the initial endowment point. b) Write the general definition of Pareto efficient allocation (one sentence) and give the equivalent condition in terms of MRS (give formula). Check if this condition is satisfied for initial endowments. c) Derive the contract curve (write down the appropriate conditions and solve for the curve) and depict it in the Edgeworth box. d) Suppose Gillian and Joana can “trade” consumption in both periods at pricesp1,p2. Find the competitive equilibrium (6 numbers) and depict the equilibrium allocation in the Edgeworth box. e) Using the MRS condition from part b),…
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Q3. Consider a utility function with one consumption good q1 and one type of leisure q2 c) Show mathematically and diagrammatically the decomposition of totaleffect.
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Felix chooses between clothing, 9₁, and food, 92. His initial income is $4,000 a month, p₁ = 400, and p₂ = 40. At his initial bundle, he consumes q₁ = 2 and q₂ = 80. Later, his income rises to $4,800 and the price of clothing rises to p₁ = $600, but the price of food does not change (p2 = 40). As a result, he reduces his consumption of clothing to q₁ =1. Using a revealed preference reasoning (that is, knowing nothing about his indifference curves), can you determine how he ranks the two bundles? O A. Felix may prefer his initial bundle or he may be indifferent between them. B. Felix is indifferent between his initial bundle and his new bundle. O C. Felix prefers his new bundle. D. Felix prefers his initial bundle. O E. Insufficient information exists to determine which bundle Felix prefers.
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3. Consider a parent who is altruistic towards her child, but also cares about her own consumption. The parent's utility over her own consumption and that of her child is up = log(co) +a log(ci) where c is the child's consumption, and a > 0 is the degree of parental altruism. Suppose that the parent can invest in the child's human capital by spending money (e) on her education; education generates human capital h /() and human capital is paid at rate w. The parent has a total income of (a) Write down an expression for the child's future consumption in terms of the parent's choice of e. (b) Now write down the Lagrangian for the parent's decision problem.
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