Consider a utility function v(co, c). The marginal rate of substitution (MRS) is defined to be...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Consider a utility function v(co, c₁). The marginal rate of substitution (MRS) is defined to be the negative of the slope of an indifference curve and is equal to av(co, c₁) /aco av(co, c₁)/ac₁ The elasticity of intertemporal substitution (EIS) is defined as MRS (CO, C₁): dlog(c₁/co) " dlog MRS (co, c₁) where the MRS is varied holding utility constant. Show that, if 1 1-P then the EIS is 1/p. v(co, c₁): = CO + 8 1-p C1 1-p " Consider the portfolio choice problem with only a risk-free asset and with consumption at both the beginning and end of the period. Assume the investor has time-additive power utility, so she solves 1 1 1-p max +8. 1- 1-p -C1 subject to P As shown in Exercise 2.6, the investor's EIS is 1/p. 1 co += c₁ = Wo. Rf (a) Show that the optimal consumption-to-wealth ratio co/wo is a decreasing function of Rf if the EIS is greater than 1 and an increasing function of Rf if the EIS is less than 1. Note: The effect of changing Rf is commonly broken down into an income effect and a substitution effect. This shows that the substitution effect dominates when the EIS is high and the income effect dominates when the EIS is low. (b) For given co and ₁, show that the solution of the investor's optimization problem implies that Rf must be lower when the EIS is higher. Consider a utility function v(co, c₁). The marginal rate of substitution (MRS) is defined to be the negative of the slope of an indifference curve and is equal to av(co, c₁) /aco av(co, c₁)/ac₁ The elasticity of intertemporal substitution (EIS) is defined as MRS (CO, C₁): dlog(c₁/co) " dlog MRS (co, c₁) where the MRS is varied holding utility constant. Show that, if 1 1-P then the EIS is 1/p. v(co, c₁): = CO + 8 1-p C1 1-p " Consider the portfolio choice problem with only a risk-free asset and with consumption at both the beginning and end of the period. Assume the investor has time-additive power utility, so she solves 1 1 1-p max +8. 1- 1-p -C1 subject to P As shown in Exercise 2.6, the investor's EIS is 1/p. 1 co += c₁ = Wo. Rf (a) Show that the optimal consumption-to-wealth ratio co/wo is a decreasing function of Rf if the EIS is greater than 1 and an increasing function of Rf if the EIS is less than 1. Note: The effect of changing Rf is commonly broken down into an income effect and a substitution effect. This shows that the substitution effect dominates when the EIS is high and the income effect dominates when the EIS is low. (b) For given co and ₁, show that the solution of the investor's optimization problem implies that Rf must be lower when the EIS is higher.
Expert Answer:
Related Book For
Microeconomics An Intuitive Approach with Calculus
ISBN: 978-0538453257
1st edition
Authors: Thomas Nechyba
Posted Date:
Students also viewed these finance questions
-
Each of the following structural roof supports maintains a load of 350 kg. Calculate the force that each tie supports, as well as the angle at which the loads are distributed. Make free body diagram....
-
In this exercise, we are working with the concept of an elasticity of substitution. This concept was introduced in part B of the Chapter. Thus, this entire question relates to material from part B,...
-
Consider your tastes for five dollar bills and ten dollar bills (and suppose that you could have partial $10 and $5 bills). A: Suppose that all you care about is how much money you have, but you dont...
-
Consider a situation with two countries that have abatement cost functions : for j=L and j=H. The countries have identical damage functions D(E)= d.E.For each country the parameters s j are drawn...
-
Jim and Mary Jean are married and have two dependent children under the age of 13. Both parents are gainfully employed and during 2016 earn salaries as follows: $16,000 (Jim) and $5,200 (Mary Jean)....
-
A person is interested in constructing a portfolio. Two stocks are being considered. Let x = percent return for an investment in stock 1, and y percent return for an investment in stock 2. The...
-
The adjusted trial balance for Sparkys Electrical Supply, Inc., as of November 30, 2010, is presented next: Requirements 1. Prepare the multi-step income statement for November for Sparkys Electrical...
-
Prescrip Co. began operations in 2012. The cost and fair values for its long-term investments portfolio in available-for-sale securities are shown below. Prepare Prescrips December 31, 2013,...
-
Show a composite shape that you could divide up multiple ways to find its area. Illustrate at 3 different ways to divide it up and label the dimensions of each division
-
Southeast Soda Pop, Inc., has a new fruit drink for which it has high hopes. John Mittenthal, the production planner, has assembled the following cost data and demand forecast: Quarter Forecast 1...
-
3. Company Z stock currently sells for $40. The required return on the stock is 8%. Company Z maintains a constant 5% growth rate in dividends. a. Calculate the most recent dividend. C. b. What is...
-
Marco Company shows the following costs for three jobs worked on in April. Job 3 0 6 Job 3 0 7 Job 3 0 8 Balances on March 3 1 Direct materials used ( in March ) $ 3 1 , 0 0 0 $ 3 7 , 0 0 0 Direct...
-
Alex, Incorporated, buys 30 percent of Steinbart Company on January 1, 2023, for $1,098,000. The equity method of accounting is to be used. Steinbart's net assets on that date were $3.30 million. Any...
-
On January 1, 2023, Cullumber Limited had shares outstanding as follows: 5% cumulative preferred shares, $100 par value, 10,000 shares issued and outstanding $1,000,000 Common shares, 201,000 shares...
-
A 0.500 inch diameter steel bar had a maximum load of 16,500 lb, and a load of 8,800 lbr at 0.002 in/in of deformation. What is the 0.2% offset yield strength of the steel bar
-
I need to discuss about new product idea and answer question 1 to 4 in my discussion. New Product Ideas Discussion: New products aren't always something no one has ever seen before. Example: when...
-
What are three years worth of PROJECTED income statements for 2023-2025 for Amazon? Formula is total revenue - cost of revenue = gross profit - operating expense = operating income + net non op...
-
In a nonmagnetic medium, E = 50 cos (10 9 t 8x) a y + 40 sin (10 9 t 8x) a z V/m find the dielectric constant r and the corresponding H.
-
Basket A contains 1 unit of x1 and 5 units of x2. Basket B contains 5 units of x1 and 1 unit of x2. Basket C contains 3 units of x1 and 3 units of x2. Assume throughout that tastes are monotonic. A:...
-
In exercise 23.3, we analyzed the case of a monopoly health insurance provider. We now extend the analysis to second-degree price discrimination, with x again denoting the degree of health insurance...
-
In exercises 18.9 and 18.10, we investigated policies that imposed a price floor in the corn market. A. We will now see whether some of the price regulation proposals we considered are equivalent to...
-
Examine the Dollarama statement of cash flows. Suppose Dollarama's operating activities used, rather than provided, cash. Identify three things under the indirect method that could cause operating...
-
Which of the following is a misappropriation of assets? a. Classifying inventory held for resale as supplies. b. Investing cash and earning a 3 percent rate of return as opposed to paying off a loan...
-
Canada Wide Transportation (CWT) began 2020 with accounts receivable, inventory, and prepaid expenses totalling \(\$ 65,000\). At the end of the year, CWT had a total of \(\$ 78,000\) for these...
Study smarter with the SolutionInn App