Principles of Economics (12th Edition)
12th Edition
ISBN: 9780134078779
Author: Karl E. Case, Ray C. Fair, Sharon E. Oster
Publisher: PEARSON
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Chapter 23, Problem 4.4P
To determine
Wealth accumulation and the equilibrium level of
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In the language of macroeconomics,
a person or firm purchases new capital.
occurs when a person's income exceeds his consumption, while
Which of the following situations represent saving? Check all that apply.
You use your $200 paycheck to buy stock in AT&T.
Your family takes out a mortgage and buys a new house.
You borrow $1,000 from a bank to buy a car to use in your pizza delivery business.
Your roommate earns $100 and deposits it in his account at a bank.
occurs when
Question 13
0/1.5 points
Consider the two-period model. Consumer's have preferences over current and future consumption (c and
c). Households only receive income in the second period, y! That is, income in the first period is equal to
zero, y=0. Households can save, s, for the second period and receive interest rate r. The slope of the budget
constraint is
-(1+r). As such, an increase in r would increase the slope in (c,c') space (the standard graph).
The government implements a proportional income tax, O
Problem Set 4: Saving and Investment
Economists in Fantasialand, a closed economy, have collected the following information about the economy for a particular year: Y = 9000; C = 6000; T = 1500; G = 1700. The economists also estimate that the investment function is: I = 3300 - 100r, where r is the country’s real interest rate, expressed as a percentage (i.e. r = 1 means interest rate is one percent). Calculate private saving, public saving, national saving, investment, and the equilibrium real interest rate.
Chapter 23 Solutions
Principles of Economics (12th Edition)
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- Use the graphs to illustrate the effect of a decrease in consumer income expectations on the consumption (C) function and the savings (S) function. Real consumption 500 450 400 350 300 250 200 150 100 50 0 0 50 C = DI с 100 150 200 250 300 350 400 450 500 Real disposable income (DI) Real savings 500 450 400 350 300 250 200 150 100 50 0 -50 -100 -150 0 50 100 150 200 250 300 350 Real disposable income (DI) S 400 450 500arrow_forwardIndicate whether each of the following descriptions represents saving or investment, as defined by a macroeconomist. Saving Investment Description This occurs when a person or firm purchases new capital. This occurs when a person's income exceeds his consumption. Which of the following situations represent investment? Check all that apply. You use your $200 paycheck to buy stock in AT&T. Your family takes out a mortgage and buys a new house. You borrow $1,000 from a bank to buy a car to use in your pizza delivery business. Your roommate earns $100 and deposits it in his account at a bank.arrow_forwardSuppose an economy has reached its steady state. If agents decide to save and invest a larger fraction of their income then GDP: starts shrinking starts growing is unaffectedarrow_forward
- Scenario 1: Suppose savers either buy bonds or make deposits in savings accounts at banks. Initially, the interest income earned on bonds or deposits is taxed at a rate of 20%. Now suppose there is a decrease in the tax rate on interest income, from 20% to 15%. Shift the appropriate curve on the graph to reflect this change. This change in the tax treatment of saving causes the equilibrium interest rate in the market for loanable funds to and the level of investment spending toarrow_forwardConsider a two-period consumption saving model and let ci and c2 denote the first and second period consumption, respectively. Assume that the interest rate at which the consumer may lend or borrow is 10%. Suppose that a consumer's utility function is u (C1, c2) = c1 + 20 c2. The consumer first period income is I1 = $100 and the present value of her income stream is $330. (a) What is the optimal consumption stream (consumption bundle) of this consumer? (b) Is this consumer borrower or lender? How much does she borrow or lend? (c) What is the effect of a reduction of the interest rate to 5% on the consumer's optimal first-period saving? (Make sure to take into account the effect of the decline in the interest rate on the present value of the consumer's income stream.)arrow_forwardThe following graph shows the market for loanable funds. For each of the given scenarios, adjust the appropriate curve on the graph to help you complete the questions that follow. Treat each scenario separately by resetting the graph to its original state before examining the effect of each individual scenario. (graph in image) Scenario 1: Suppose savers either buy bonds or make deposits in savings accounts at banks. Initially, the interest income earned on bonds or deposits is taxed at a rate of 20%. Now suppose there is an increase in the tax rate on interest income, from 20% to 25%. Shift the appropriate curve on the graph to reflect this change. This change in the tax treatment of interest income from saving causes the equilibrium interest rate in the market for loanable funds to (a. fall, b. rise) and the level of investment spending to (a. increase, b. decrease). Scenario 2: An investment tax credit effectively lowers the tax bill of any firm that purchases…arrow_forward
- Consider the 2-period household model that you have seen in class. Suppose the household wants to consume equal amounts in both periods. She earns $100 in the first period and $150 in the second period. The interest rate depends on whether she saves or borrows. The interest rate on saving is 1%, while the interest rate on borrowing is 10%. What is her optimal consumption? Note: Type in your answer approximated to two decimal points, i.e., your answer must be of the form "999.99". I will not be able to fix correct answers that were entered incorrectly, such as "999.999" or "999,99" or "999". In case the last digit in the correct answer is zero, e.g., "999.90" or "999.00", Blackboard will automatically delete it and you should not do anything about it.arrow_forwardWith the help of consumption function C=10+0.5Y, calculate savings at an income level of $500arrow_forwardClassify each of the following scenarios listed in the table below using the macroeconomic definitions of saving and investment. Saving Investment Manuel buys a government bond. Poornima borrows money to build an addition to a lab owned by her engineering firm. Valerie purchases shares of stock in Warm Breeze, a cloud computing company. Shen takes out a loan and uses it to build a new cabin in Idaho.arrow_forward
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