
(a):
Unplanned inventory in the economy.
(a):

Explanation of Solution
The unplanned inventory investment can be calculated by subtracting the consumption from the real
Thus, the unplanned inventory in this case is -75. Similarly, the other case unplanned inventory can be calculated and the table can be completed as follows:
Possible levels of employment (millions of workers) | Real GDP (Output) equals disposable income (billions of dollars) | Consumption (billions of dollars) | Unplanned inventory (billions of dollars) |
40 | $325 | $300 | $-75 |
45 | 375 | 325 | -50 |
50 | 425 | 350 | -25 |
55 | 475 | 375 | 0 |
60 | 525 | 400 | 25 |
65 | 575 | 425 | 50 |
70 | 625 | 450 | 75 |
Aggregate expenditure: Aggregate expenditure is the measure of the
(b):
Marginal propensity to consume and save.
(b):

Explanation of Solution
The marginal propensity to consume can be calculated by dividing the change in the consumption by the change in the disposable income. In the first place, when the consumption increases from $300 to $325, the change in the consumption is $25 billion. The real GDP was $325 and it changes to $375, which denotes the change in the disposable income by $50 billion. Thus, MPC can be calculated as follows:
Thus, MPC is 0.5. The MPS can be calculated by subtracting the MPC from 1 as follows:
Thus, the MPS is also equal to 0.5.
(c):
Equilibrium level of output when the economy employs 40 million workers.
(c):

Explanation of Solution
The level of unplanned inventory in the economy when employing 40 million workers is $75 billion. Thus, it means that the businesses in the economy would invest more and expand their output in the economy. This leads to an increase in the real GDP and the equilibrium level of real GDP, which is at $475 billion, where the unplanned inventory is $0.
Want to see more full solutions like this?
Chapter 9 Solutions
MindTap Economics, 1 term (6 months) Printed Access Card for Tucker's Macroeconomics for Today, 10th
- how to solve the attachment?arrow_forwardProblem 3-ABC Challenges: Attrition, Balance and ComplianceCan television inform people about public affairs? Political scientists Bethany Albertson and Adria Lawrence (2009) conducted an experiment in which they randomly assigned people to treatment and control groups to evaluate the effect of watching TV on a person’s information level. Those assigned to the treatment group were told to watch a specific television broadcast and were later asked questions related to what they watched. Those in the controlgroup were not shown the TV broadcast but were asked questions related to the material in the TV broadcast. The dataset contains the following variables: : Dummy variable which =1 if a person reads news and 0 otherwise. : interest in political affairs (not interested=1 to very interested=4) : years of education : female dummy variable (female=1; male=0) : family income in thousands of dollars : information level (low information level=1 to high information level=4) =1 if the…arrow_forwardProblem 2-Experiments/Randomized Control Trial Suppose you are interested in studying the effect of academic counselling on the years it takes for a student to obtain an undergraduate degree. You conduct a randomized control trial to answer the question. You randomly assign 2500 individuals in a university in New York to receive academic counselling and 2500 students to not receive any academic counselling. a. Which people are a part of the treatment group and which people are a part of thecontrol group? b. What regression will you run? Define the variables where required. c. Suppose you estimate = -0.3. Interpret it. d. You test for balance using the variables mentioned in the table below. Based on the results do you think that the treatment and control group are balanced? If your answer is “yes” then explain why. If your answer is “no”, then explain why and mention how will you address the issue of imbalance. e. Suppose that some unmotivated students in the control group decided to…arrow_forward
- How to calculate total cost?arrow_forwardProblem 1-Experiments/Randomized Control TrialSuppose you are interested in studying the effect of being a part of the labor union on anindividual’s hourly wage.You collect data on 1000 people and run the following regression. where is a dummy variable which is equal t to 1 for people who are a part of labor union and0 for others. a. Suppose you estimate . Interpret b. Do you think is biased or unbiased? Explain. Now suppose you conduct a randomized control trial to answer the same question. Yourandomly assign some individuals to be a part of the labor union and others to not be a partof the labor union. The first step you take is to ensure that the randomization was donecorrectly. Then you estimate the following equation: =1 if the student is assigned to be a part of Labor Union=0 if the student is assigned to not be a part of Labor Union c. Why is it important to ensure that the randomization is done correctly? d. Name any two variables that you can use to test if Treatment and…arrow_forwardWhat is kiosk?arrow_forward
- If food is produced in the U.S., sold in the U.S. and consumed in the U.S., a reduction in its price will have which of the following effects ______? Two of the answers are correct. The consumer price index will decrease. None of the answers are correct. The GDP deflator will decrease.arrow_forwardhow to caculate verible cost?arrow_forwardWhat is the deficit?arrow_forward
- Identify the two curves shown on the graph, and explain their upward and downward slopes. Why does curve Aintersect the horizontal axis? What is the significance of quantity d? What does erepresent? How would the optimal quantity of information change if the marginal benefit of information increased—that is, if the marginal benefit curve shifted upward?arrow_forward6. Rent seeking The following graph shows the demand, marginal revenue, and marginal cost curves for a single-price monopolist that produces a drug that helps relieve arthritis pain. Place the grey point (star symbol) in the appropriate location on the graph to indicate the monopoly outcome such that the dashed lines reveal the profit-maximizing price and quantity of a single-price monopolist. Then, use the green rectangle (triangle symbols) to show the profits earned by the monopolist. 18 200 20 16 16 14 PRICE (Dollars per dose) 12 10 10 8 4 2 MC = ATC MR Demand 0 0 5 10 15 20 25 30 35 40 45 50 QUANTITY (Millions of doses per year) Monopoly Outcome Monopoly Profits Suppose that should the patent on this particular drug expire, the market would become perfectly competitive, with new firms immediately entering the market with essentially identical products. Further suppose that in this case the original firm will hire lobbyists and make donations to several key politicians to extend its…arrow_forwardConsider a call option on a stock that does not pay dividends. The stock price is $100 per share, and the risk-free interest rate is 10%. The call strike is $100 (at the money). The stock moves randomly with u=2 and d=0.5. 1. Write the system of equations to replicate the option using A shares and B bonds. 2. Solve the system of equations and determine the number of shares and the number of bonds needed to replicate the option. Show your answer with 4 decimal places (x.xxxx); do not round intermediate calculations. This is easy to do in Excel. A = B = 3. Use A shares and B bonds from the prior question to calculate the premium on the option. Again, do not round intermediate calculations and show your answer with 4 decimal places. Call premium =arrow_forward
- Exploring EconomicsEconomicsISBN:9781544336329Author:Robert L. SextonPublisher:SAGE Publications, Inc
- Economics (MindTap Course List)EconomicsISBN:9781337617383Author:Roger A. ArnoldPublisher:Cengage Learning





