Microeconomics: Private and Public Choice (MindTap Course List)
16th Edition
ISBN: 9781305506893
Author: James D. Gwartney, Richard L. Stroup, Russell S. Sobel, David A. Macpherson
Publisher: Cengage Learning
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Question
Chapter ST3, Problem 1CQ
To determine
Results of investments in stock.
Expert Solution & Answer
Explanation of Solution
People can choose a diversified portfolio to get a high return with low risk. If an individual only invests in stock market, it will result in a higher risk. But he invests in a stock market by holding a diverse portfolio; he can achieve a good high return with least risk. It is also a good idea when the person uses some social security program to make his investments. If the person invests in the Old Age and Survivor Insurance, he will get a benefit from the program at the time of his retirement.
Economics Concept Introduction
Portfolio: Portfolio is a mixed investment in stock, bond, bank saving, and so on to get a high profit with low cost.
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Students have asked these similar questions
MCB
MCA
The figure to the right shows the marginal cost of
pollution abatement for two firms, A and B. The firms were
initially abating 36 units of pollution each. Now they can
trade pollution permits at a price of $32. As a result, firm
permits and firm B
A
permits.
Both firms are now better off and their total saving will be
(Enter your answer rounded to the nearest
$
whole number.)
Dollars per Unit ($)
44
32
20
The Efficiency of Tradable
Pollution Permits
31 36 41
Quantity of Pollution Abatement
k
-6°C Mostly clear
Next
The figure to the right shows the marginal costs of
abatement for an industry's only two firms, A and B.
These firms were initially abating 30 units of pollution (the
vertical dashed line). Now they can trade permits. The
market price for permits under which an efficient pollution
abatement will be achieved is $
rounded to the nearest whole number.)
192
176-
160-
(Enter your response
144-
128-
112-
96
80-
64-
48-
32-
16
0
0
MC
MCB
10 20 30 40 50 60 70 80 90 100 110 12
Pollution Abatement
-6°C Mostly clear
Next
The figure shows the private and social marginal costs
and the marginal benefit of producing paper. The
marginal social net benefit derived from the production of
paper is
OA. maximized at an output level of 35 because that
is where MCp equals MB.
OB. maximized at an output level of 25 because that
is where MCs equal MB.
OC. zero at an output level of 25 because that is
where MCs equals MB.
OD. zero at an output level of 35 because that is
where MCp equals MB
Dollars per Unit
25 35
Quantity of Paper
-6°C Mostly clear
D=MB
Next
MCS
MC
Chapter ST3 Solutions
Microeconomics: Private and Public Choice (MindTap Course List)
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Similar questions
- Refer to the given figure. MB and MC represent the social marginal benefit and social marginal cost of pollution abatement. The total net benefit from the optimal level of pollution abatement is $ (Enter your response rounded to the nearest whole number.) D Dollars per Unit 0 MC 18 810 Pollution Abatement -6°C Mostly clear Next MBarrow_forwardSuppose that each firm pollutes 100 units and is given 70 pollution permits (i.e., each firm must reduce pollution by 30 units if they do not trade their permits). If firms are allowed to trade their permits, then the equilibrium price of permits will be and permits. and as a result of being able to trade their OA. $10; firm A buys 20 permits from firm B profits fall by $200 for A and rise by $200 for B OB. $10; firm A buys 20 permits from firm B profits rise by $40 for A and rise by $40 for B OC. $12; firm A sells 10 permits to firm B; profits rise by $40 for A and rise by $40 for B OD. $12, firm A buys 10 permits from firm B profits fall by $120 for A and rise by $120 for B E. None of the above Marginal Abatement Cost ($) 18 16- 4 12- 10- 8- MCA 0 10 20 30 40 50 60 70 80 Pollution Abatement 90 -6°C Mostly clear Next M 40arrow_forwardConsider an economy in which there are two polluters: A and B. The marginal cost of pollution abatement curves are given in the diagram to the right. The total cost of reducing pollution by 60 units if it is done efficiently or $ equals $ if it is done by forcing each firm to reduce pollution by 30 units. OA. 925; 1125 OB. 900; 1100 OC. 850, 1050 OD. 800, 1000 OE. None of the above The efficient levels of pollution reduction can be achieved by using a pollution tax equal to $ unit A. 25 0 per MC 45 40 35 30- 25 20- 15 10- 5- Marginal Abatement Cost ($) 10 20 30 40 50 60 70 80 Pollution Abatement -6°C Mostly clear Next 90arrow_forward
- is initially abating Q units of pollution. Suppose that a system of tradeable pollution permits is introduced into this market and the equilibrium permit price is P* Firm B will sell permits to Firm A because OA. Firm A has lower costs of pollution abatement than Firm B. OB. Firm B's total cost of abating more pollution (area 1) is less than the revenue it earns from selling the permits (areas 5+3). OC. Firm B's total cost of abating more pollution (areas 3+1) is less than the revenue it earns from selling the permits (areas 5+3+1). OD. Firm B can buy the permits at a lower price than Firm A OE. the revenue Firm B earns from selling permits (areas 3+1) is greater than the cost it incurs from abating more pollution (area 1). Dollars per unit Q₁ Qo Q2 Pollution Abatement ил Next -6°C Mostly clear MCA MCBarrow_forwardThe accompanying diagrams show the marginal costs of pollution abatement for two firms, Firm 1 and Firm 2. If the government requires each firm to abate Q units of pollution, the social costs of this abatement OA. could be reduced further if Firm 2 increased abatement and Firm 1 reduced its abatement by the same amount OB. could be reduced further if each firm was required to abate more. OC. could be reduced further if each firm was allowed to pollute more. OD. would be minimized. WOE could be reduced further if Firm 1 increased abatement and Firm 2 reduced its abatement by the same amount. Dollars 5 Firm 1 MC1 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Abatement Q Firm 2 6- MC2 E 屈 Dollars -6°C Mostly clear Nextarrow_forwardThe diagram to the right illustrates a competitive industry in which there is a negative production externality. If a tax equal to $20/unit (i.e., a tax equal to the marginal external cost) is imposed, then the net social benefit will OA. fall by area A+ C. OB. rise by area B+C. OC. fall by area C. OD. rise by area B. OE. None of the above. W Marginal Benefit, Marginal Cost ($) 50 MCS MCp 45 35 30- 25 20 15 10- 5 0- 0 B D 10 20 30 40 50 60 70 80 90 100 110 Quantity -6°C Mostly clear Nextarrow_forward
- Not use ai pleasearrow_forwardProblem 3 Simple Bivariate Regression Consider the following bivariate regression model: NAMEUIN Page 1 of 2 = Hourly Wages, Bo+B₁Education; + & where Education measures the years of experience at the job for an individual and Hourly Wage is the hourly wage in dollars. The subscript i indexes various people. You run a bivariate OLS regression to estimate Bo and B₁. Suppose you estimate B = 10 and B a. 0 = 2 How do you interpret the estimates ßo and ß₁ in this context? (3 points) 1 b. Define the terms "predicted/fitted value" and "residual”. (3 points) c. Suppose that for some individual, the predicted value of Hourly Wage is $20, and the residual is 2. What is the actual Hourly wage for the individual? Show your work. (4 points) d. Suppose that some individual has 10 years of Education, and his actual hourly wage is $35. What is the predicted outcome and residual for this individual? Show your work. (5 points)arrow_forwardProblem 1 The Core Model Suppose you are interested in studying the effect of workers' training (measured by the number of training hours) on employee productivity (measured by output per hour). a. What is the dependent and independent variable in this setting? (2 points) b. How would you write this relationship using the Core Model? (3 points) C. Do you expect the slope coefficient ẞ₁, (which shows relation between teacher's experience and test scores) to be positive or negative? Explain your reasoning. (5 points) d. Name any two factors that are likely included in the error term of your model? (5 points)arrow_forward
- Problem 2 Endogeneity Suppose you are interested in how social media usage affects students' academic performance. Consider the following model: GPA; = ßo + ß₁Social Media Hours; + ɛ; where GPA, is the grade point average of a student and Social Media Hours; measures how many hours the student spends on social media every week. Each student is denoted by the subscript i. a. What is the dependent variable Y in this setting? What is the independent variable X in this setting? (4 points) b. What does Bo C. What does ẞ1 = 3 mean? (2 points) = 0.2 mean? (3 points) d. What is the condition for the independent variable Social Media Hours; to be endogenous? (5 points) e. Is the independent variable likely to be endogenous? Why or why not? (3 points) f. If yes, describe a scenario where the independent variable is endogenous. (3 points)arrow_forwardNot use ai pleasearrow_forwardNot use ai pleasearrow_forward
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