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Chapter 9 - Practice Questions 1) Which of the following are the defining assumptions of the short run in macroeconomics? A) Factor prices are exogenous, and technology and factor supplies are constant. B) Factor prices are exogenous, and technology and factor supplies are changing. C) Factor prices are exogenous, technology and factor prices are endogenous. D) Factor prices adjust to output gaps, and technology and factor supplies are constant. E) Factor prices adjust to output gaps, and technology and factor prices are changing. 2) In macroeconomic analysis, the assumption that potential output (Y*) is changing is a characteristic of A) the national accounts model. B) the short run. C) the long run. D) the adjustment process. E) the business cycle model. 3) If wages rise faster than increases in labour productivity, then unit labour costs will ____ and the AS curve will shift ______. 4) If an economy is experiencing neither a recessionary gap nor an inflationary gap, the real output of the economy will be reflected by A) a point to the right of the aggregate supply curve at potential GDP. B) the aggregate expenditure curve shifting upward. C) the aggregate demand curve shifting to the left. D) the intersection of the AD and AS curves at potential output. E) the aggregate supply curve shifting to the left. FIGURE 1 5) Refer to Figure 1. If the economy is currently producing output of Y0, the economy's automatic adjustment process will have the A) economy remaining where it is. B) AS curve shifting to the right until point A is reached. C) vertical line at Y* shifting to the left until it gets to Y0. D) level of potential output falling. E) AD curve shifting to the right until point B is reached. 6) Refer to Figure 1. If the economy is currently producing output of Y0 and wages are sticky downwards, then the A) economy will quickly move to point A. B) level of output will decrease below Y0. C) AD curve will eventually shift to the right and return the economy to its full-employment level of output. D) economy will eventually move to point B. E) economy will only move gradually toward point A as wages slowly adjust.
7) Consider the basic AD/AS diagram. The vertical line at Y* shows the relationship between the price level and the amount of output ________ have adjusted to output gaps. A) demanded by households before all factor prices B) supplied by firms after all factor prices C) supplied by firms before all factor prices D) demanded by households after all factor prices E) supplied by firms after all output prices TABLE 1 shows data for five economies of similar size. Real GDP is measured in billions of dollars. Assume that potential output for each economy is $340 billion. 8) Refer to Table 1. Which of the following statements best describes the situation facing Economy B? A) There is a recessionary gap of $20 billion and wages are falling slowly. B) There is no output gap and wages are stable. C) There is an output gap of $20 billion and wages are rapidly adjusting. D) There is an inflationary gap of $40 billion and wages are rising. E) There is a recessionary gap of $40 billion and wages are falling slowly. 9) Refer to Table 1. How is the adjustment asymmetry demonstrated when comparing Economy A to Economy E? A) The output gap is much larger in Economy E, so wages are changing at a faster rate. B) The size of the output gap is the same in Economies A and E, but wages are rising in A and falling in E. C) The output gap is larger in Economy A, yet wages are changing more slowly. D) The size of the output gap is the same in Economies A and E but wages are falling more slowly in A than they are rising in E. E) There is insufficient data with which to observe the adjustment asymmetry. 10) Consider an economy with a relatively steep AS curve. If there is a shift to the right in the AD curve, there will be a ________ in the price level and ________ in national output. A) large increase; a small decrease B) small increase; a large increase C) large increase; a small increase D) small increase; a large decrease E) large increase; no change 11) Suppose Canada's economy is in a long-run equilibrium with real GDP equal to potential output. Now suppose there is an increase in world demand for Canada's goods. In the short run, ______. In the long run, ______. A) real GDP and the price level both rise; real GDP returns to its original level with a higher price level B) real GDP and the price level both rise; real GDP is above its original level with a higher price level C) real GDP rises and the price level falls; real GDP returns to its original level with a lower price level D) real GDP and the price level both fall; real GDP is below its original level with a lower price level E) real GDP falls and the price level rises; real GDP is below its original level with a higher price level 12) Consider the basic AD/AS macro model in long-run equilibrium. A permanent expansionary AD shock has ________ price-level effect in the short run and ________ price-level effect in the long run. A) a positive; an even larger B) a positive; a smaller C) a positive; no D) a negative; a positive E) a negative; no
13) Assume Canada's economy is in a long-run equilibrium with real GDP equal to potential output. Suppose there is a decrease in the Canadian price of all imported raw materials. In the short run, _______. In the long run,_______. A) real GDP rises and the price level falls; real GDP and the price level return to their original levels B) real GDP falls and the price level rises; real GDP is below its original level with a higher price level C) real GDP and the price level both rise; real GDP is above its original level with a higher price level D) real GDP and the price level both fall; real GDP is below its original level with a lower price level E) real GDP and the price level both rise; real GDP returns to its original level with a higher price level FIGURE 2 shows an AD/AS model for an economy. The economy begins in long-run equilibrium at point A. 14) Refer to Figure 2. A negative shock to the economy shifts the AD curve from AD
1
to AD
2
. The initial effect is A) an inflationary output gap of 200. B) a recessionary output gap of 550. C) a recessionary output gap of 100. D) a recessionary output gap of 300. E) an inflationary output gap of 100. 15) Refer to Figure 2. A negative shock to the economy shifts the AD curve from AD
1 to AD
2
. At the new short run equilibrium, the price level is ________ and real GDP is ________. A) 60; 700 B) 90; 900 C) 110; 800 D) 90; 1250 E) 60; 1000 16) Refer to Figure 2. Which of the following events could have shifted the AD curve from AD
1
to AD
2
? A) an increase in desired investment B) an increase in government purchases C) an increase in autonomous consumption D) an increase in net exports E) an increase in autonomous household saving 17) Refer to Figure 2. After the negative aggregate demand shock shown in the diagram (from AD
1
to AD
2
), which of the following describes the adjustment process that would return the economy to its long-run equilibrium? A) Wages would increase, causing the AS curve to shift to the right, reaching a new equilibrium at point E. B) Wages would eventually fall, causing the AS curve to shift slowly to the right, reaching a new equilibrium at point E. C) Potential output would decrease from 1000 to 900 and a new long-run equilibrium would be established at point D. D) Wages would increase, causing the AD curve to shift to the right, returning to the original equilibrium at point A. E) Wages would eventually fall, causing the AD curve to shift to the right, returning to the original equilibrium at point A. 18) Refer to Figure 2. Following the negative AD shock (from AD
1
to AD
2
), the adjustment process will take the economy to a long-run equilibrium where the price level is ________ and real GDP is ________. A)
110; 800 B) 60; 1000 C) 90; 900 D) 90; 1250 E) 110; 1000
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Related Questions
Consider a production function Y = KªL1-«.
a) What is the marginal product of capital? Write down the formula and show your working.
b) Write down the profit maximization problem for the firm.
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Discussion: What are the implications when a firm is out of the
equi-marginal point? Focus your response on input productivity
and input prices. For instance, when is productivity of one input
relative to its price is not equal to productivity of another input
relative to its price? Provide an example of the equi-marginal
principle at work in the real world.
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Problem 1 - Macroeconomics - please help.
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Question 4:
A firm uses two inputs, capital and labor, to produce output. Its production function exhibits a
diminishing technical rate of substitution (e.g. Cobb-Douglas production function).
1. If the price of capital and the price of labor increase by the same percentage (e.g., 40 percent
), what will happen to the cost-minimizing input quantities for a given output level?
2. If the price of capital increases by 20 percent while the price of labor increases by 40 percent,
what will happen to the cost-minimizing input quantities for a given output level?
arrow_forward
Suppose that a firm's production function is Cobb-Douglas (Y = A K\alpha L1 - \alpha) with parameter a \alpha
= 0.4. a) What fractions of income do capital and labor receive? b) Suppose that number of the labor increases by 10
percent. What happens to total output (in percent)? The rental price of capital? The real wage? c) Suppose that a gift of
capital from abroad raises the capital stock by 10 percent. What happens to total output (in percent)? The rental price of
capital? The real wage? d) Suppose that a technological advance raises the value of the parameter A by 10 percent.
What happens to total output (in percent)? The rental price of capital? The real wage?
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please answer the both questions 16,17!!
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Economics
Modify the Lewis model and assume that there is a
strictly positive marginal product of labor in the
traditional sector. Use figures with production
functions in the traditional and the modern sectors
to show what the equilibrium is when no one
wants to move away from agriculture. What
assumptions do you have to make about
production functions to arrive at the conclusion
that fewer people will end up in agriculture?
Use the same starting point as in the above
question. Derive the demand for labor in the
traditional and in the modern sectors. Show
graphically what the characteristics of the
equilibrium would look like when no one wants to
change sectors.
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PLEASE ANSWER ONLY QUESTION 8
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Economics: Industrial Economics
Question: 1
A firm produces output according to the following production function:
q = 10 K^1/4 L^1/4
The price of capital is r = 9 and the price of labor is w = 25 and there is a set-up cost F = 90 that the firm only pays if it decides to produce in the market. If the firm wants to produce 'q' units of output, solve the cost minimization problem. Obtain total cost C* (as a function of output level q).
Now assume that the firm operates under monopoly and the inverse demand function is
p = 115 - 2 q
Use the solution to the cost minimization problem to solve the profit maximization problem of this firm. Determine this firm's price p*. Please Show your Work.
a. 55
b. 75
c. 85
d. 65
Question: 2
A firm produces output according to the following production function:
q = 10 K^1/4 L^1/4
The price of capital is r = 9 and the price of labor is w = 25 and there is a set-up cost F = 90 that the firm only pays if it decides to produce in the market. If the firm…
arrow_forward
Economics: Industrial Economics
Question: 1
A firm produces output according to the following production function:
q = 10 K^1/4 L^1/4
The price of capital is r = 9 and the price of labor is w = 25 and there is a set-up cost F = 90 that the firm only pays if it decides to produce in the market. If the firm wants to produce 'q' units of output, solve the cost minimization problem. Obtain total cost C* (as a function of output level q).
The firm is operating within a perfectly competitive industry. Use the solution to the cost minimization problem to solve the profit maximization problem of this firm for a given price p. Then, knowing that the firm is producing 30 units at maximum profit, do the following:
Determine the market price. Please show work.
a. 10
b. 20
c. 12
d. 18
Question 2:
A firm produces output according to the following production function:
q = 10 K^1/4 L^1/4
The price of capital is r = 9 and the price of labor is w = 25 and there is a set-up cost F = 90 that the firm…
arrow_forward
i NEED HELP I KEEP GETTING THIS WRONG MACROECONMICS QUESTION 1
arrow_forward
Problem 2
(a) Find an example of a production technology that is such that two inputs must be used in fixed
proportions (hopefully a different one from the examples discussed in class). Explain why you
chose this example. Draw a typical isoquant of the example you found.
(b) Find an example of a production technology that is such that two inputs are completely inter-
changeable. Explain why you chose this example. Draw a typical isoquant of the example you
found.
(c) Find an example of convexity of production technology. Explain why you chose this example.
Draw a typical isoquant of the example you found.
arrow_forward
A firm uses two inputs in production: capital and labor. In the short run, the firm cannot adjust the amount of capital it is using, but it can adjust the size of its workforce. What happens to the firm’s average total cost curve, the average variable cost curve, and the marginal cost curve when
the cost of renting capital increases?
the cost of hiring labor increases?
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Economics: Industrial Economics
Question: 1
A firm produces output according to the following production function:
q = 10 K^(1/4) L^(1/4)
The price of capital is r = 9 and the price of labor is w = 25 and there is a set-up cost F = 90 that the firm only pays if it decides to produce in the market. If the firm wants to produce ‘q’ units of output solve the cost minimization problem. Obtain the demand for capital K* (as a function of output level q).
If the firm wants to produce 30 units of output, determine how much capital it will demand. Please show your work.
a. 45
b. 15
c. 4.5
d. 30
Question 2-
A firm produces output according to the following production function:
q = 10 K^1/4 L^1/4
The price of capital is r = 9 and the price of labor is w = 25 and there is a set-up cost F = 90 that the firm only pays if it decides to produce in the market. If the firm wants to produce 'q' units of output, solve the cost minimization problem. Obtain the demand for labor L* (as a function of output…
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93) Explain the difference between the short run and the long run as it relates to the firm's production function. Why is this distinction important to a firm's manager?
94) Use the following information on a hypothetical short-run production function to answer questions a-c.
Units of Labor/Day56789
Units of Output/Day120140155165168
The price of labor is $20 per day. Ten units of capital are used each day, regardless of output level. The price of capital is $50 per unit.
a. Calculate the marginal and average variable product of each unit of labor input.
b. Calculate total, average total, average variable, and marginal costs.
c. Can you tell where diminishing marginal returns sets in?
95) When demand for a firm's product decreases, the firm can take a number of steps to adjust costs and quantities supplied to the market. Some are listed below. Which actions are short run and which are long run? Explain your reasoning.
a. Layoff 25…
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(b) In a self-regulating economy “X”, labor supply is 40 million but labor demand is 10 million.
What will happen in goods and service market simultaneously? Explain this situation with relevant graph.
Based on your findings in a) is it denoting long run equilibrium? If not, will the economy be able to restore it? Explain with suitable graph.
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29) How many units of labor will the AquaPlant hire based on the figures from the table?
30) What is the economic concept associated with the decline in MPL as the number of labor units increase?
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Question 2 - Production
The following table summarizes the short-run production function for your firm. Your product sells for $5 per
unit, labor costs $20 per unit, and the rental price of capital is $100 per unit. Complete the following table, and
then answer the accompanying questions.
a. Fill out the table above and show work and formulas used.
b. Which inputs are fixed inputs? Which are the variable inputs? Explain how you know.
c. How much are your fixed costs?
d. What is the variable cost of producing 20 units of output?
e. How many units of the variable input should be used to maximize profits?
f. Over what range of variable input usage do increasing marginal returns exist? Explain.
g. Over what range of variable input usage do decreasing marginal returns exist? Explain.
h. Over what range of variable input usage do negative marginal returns exist? Explain.
Bonus: What are your maximum profits?
QKL
5 0
2
0
10 5
30 5
4
60 5 6
80 5
8
90 5 10
95 5 12
95 5 14
90 5 16
80 5 18
60 5…
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Use a graph of labor input and its marginal product to argue that in the specific factors model(i.e. in the short run), an inflow of labor to a country reduces wages in the country. How are the rental rates of specific factors affected?
see figure 5-2 in the slides. The rental rates of specific factors rise, because their marginal products rise due to an increase in labor intensity.
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Question 5
How will each of the following scenarios impact the market for labor?
A technological change of clothes that increases productivity of all workers.
Impact on supply of labour
Increase employment
wage rates unchanged
Increase wage rate.
Decrease wage rates name, called and changed [movement along the curve]
Employment unchanged.
Shifts outwards/to the right
decrease employment.
Shift inwards/to the left
Impact on demand for labor
Increase employment
wage rates unchanged
Increase wage rate.
Decrease wage rates name, called and changed [movement along the curve]
Employment unchanged.
Shifts outwards/to the right
decrease employment.
Shift inwards/to the left
Impact on wage rate
Increase employment
wage rates unchanged
Increase wage rate.
Decrease wage rates name, called and changed [movement along the curve]
Employment unchanged.
Shifts outwards/to the right
decrease employment.
Shift inwards/to the left
Impact on employee level
Increase employment
wage rates…
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