4.4 This chapter argues that saving and spending behaviordepend in part on wealth (accumulated savings and in-heritance), but our simple model does not incorporatethis effect. Consider the following model of a simpleeconomy: C=50+0.8Y+0.1WI= 200W= 500Y=C+IS=Y-CIf you assume that wealth (W) and investment (I) remainconstant (we are ignoring the fact that saving adds to thestock of wealth), what are the equilibrium levels of GDP(Y), consumption (C), and saving (S)? Now suppose thatwealth increases by 100 percent to 1,000. Recalculatethe equilibrium levels of Y, C, and S. What impact doeswealth accumulation have on GDP? Many werecon cerned with the large increase in stock valuesin the late1990s. Does this present a próblem for theeconomy?Explain.

Given; Consumption; C=50+0.8Y+0.1WInvestment; I=200Wealth; W=500GDP; Y=C+ISaving; S=Y-C then;…

Answered: 4.4 This chapter argues that saving and…

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 described by the following equations:Y=C + I +GY=7,000G=4000T=2,000C=150+0.75(Y-T)I=1,000-50rc. Now suppose the G rises by 1,000. Compute private saving, public saving, andnational saving and show a graphical representation of your answer.
Classify each of the following scenarios listed in the table below using the macroeconomic definitions of saving and investment. Shen purchases a new townhouse in Hartford. Poornima borrows money to build an addition to a lab owned by her engineering firm. Manuel purchases a certificate of deposit at his bank. Valerie purchases stock in Tesqar, a biotech firm. Saving Investment O
Consider the problem of an individual that has Y dollars to spend on consuming over two periods. Let c, denote the amount of consumption that the individual would like to purchase in period 1 and c2 denote the amount of consumption that the individual would like to consume in period 2. The individual begins period 1 with Y dollars and can purchase c1 units of the consumption good at a price P and can save any unspent wealth. Use sı to denote the amount of savings the individual chooses to hold at the end of period 1. Any wealth that is saved earns interest at rate r so that the amount of wealth the individual has at his/her disposal to purchase consumption goods in period 2 is (1+r)s1. This principal and interest on savings is used to finance period 2 consumption. Again, for simplicity, we can assume that it costs P2 dollars to buy a unit of the consumption good in period 2. 2 The individual's total happiness is measured by the sum of period utility across time, u(cı) + u(c2). Let u(c)…
Given a closed economy where there is no public sector. Production in the economy can be described with the following production function: Y = F (K, AL) = Kα(AL)1−α where Y is the productive capacity of the economy, K is the capital stock, L is the labor force, and A is knowledge. Think of AL as a single factor of production where knowledge and the amount of labor are multiplied together. Let's call the multiplier (ie AL) the efficiency of labor. Given that A = 1.5 and saving is a fixed rate of the production, or s = 33%. The capital stock shrinks by 3% per year, while the population grows is nobody Finally, α = 0.4. Answer the following questions based on the above criteria. (a) Show mathematically that the marginal productivity of labor and capital is positive but diminishing. Explain in words and with a picture what the term positive but diminishing marginal productivity means. (b) Show mathematically that saving and investment are equivalent in a closed economy (c) Show…
Consider an economy where individuals live for two periods only. Their utility function over consumption in periods 1 and 2 is given by U = 2 log(C1) + 2 log(C2), where C1 and C2 are period 1 and period 2 consumption levels respectively. They have labor income of $100 in period 1 and labor income of $50 in period 2. They can save as much of their income in period 1 as they like in bank accounts, earning interest rate of 5 percent per period. They have no bequest motive, so they spend all their income before the end of period 2. a. What is each individual’s lifetime budget constraint? If they choose consumption in each period so as to maximize their lifetime utility subject to their lifetime budget constraint, what is the optimal consumption in each period? How much do the consumers save in the first period? b. Suppose that the government introduces a social security system that will take $10 from each individual in period 1, put it in a bank account, and transfer it back to…
Suppose Bank of England is considering using the tool of cutting interest rates to boost household consumption. In this question you will be asked to use the intertemporal choice model to assess the impact of different policies on household consumption. Suppose a consumer's current income is £25,000 and their future income is £30,000, and they initially face a market interest rate of 15% on both saving and borrowing. (a) In a diagram with consumption this year (C1) on the horizontal axis and consumption next year (C2) on the vertical axis, illustrate this consumer's budget constraint (using the numerical values set above) and indicate their optimal choice by drawing a indifference curve convex to the origin, assuming that at the current interest rate it is optimal for them to save. (b) Calculate (using the numerical values set above) and interpret their marginal rate of time preference at their optimal choice. (c) Illustrate and explain how a fall in the market interest rate from 15%…
1. Which of the following equations is the correct expression of the IS curve? ao+Bo-B₁i+G a. Y = b. Y= C. d. Y= 1-α₁ (1-t) C+I+G Y = 1-a₁ (1-1) ao+Bo-B₁i+G 1+α₁ (1-t) C+I+G 1+a₁ (1-1)
If the consumption function is C = 100 + 0.8Yd, T= 200 and Y = 800, what is savings?
5
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Consider the market for loanable fund. Suppose that government started to give tax incentives for investment (so the cost of investment fell.) Answer which curve (Demand or Supply) would shift to which direction (Left or Right), and answer how the equilibrium saving would change (Decrease or Increase)Curve: Direction: Saving:
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