MccEachern Ch 11 Aggregate Supply
If wages are flexible, the long-run aggregate supply curve is vertical.
TRUE
Suppose the economy is initially in long-run equilibrium and then it experiences a supply shock in the form of sharply higher energy prices. Which of the following is true?
There will be a movement to the left along the aggregate demand curve.
Given the aggregate demand curve, an adverse supply shock would
cause no change in output or the price level
In the short run, but not in the long run,
cyclical unemployment can exist
The graph in Exhibit 10-7 shows a(n)
decrease in short-run aggregate supply
The potential output of an economy is the level of output produced when the
expected price level equals the actual price level
Compensation is usually negotiated in terms of the nominal wage because wage agreements are based on expected price levels.
expected price levels
If the price level rises by 5 percent and the nominal wage rises 3 percent, the real wage
falls by 2 percent
If the actual price level is less than the expected price level reflected in long-term contracts,
firms will find production less profitable than they had expected and will decrease the quantity of output supplied
Which of the following types of unemployment can exist in an economy that is at its potential output level?
frictional, seasonal, and structural unemployment only
The key resource underlying aggregate supply is
labor
An expansionary gap is closed in the long run by a(n)
leftward shift of the short-run aggregate supply curve
Wage agreements may cause costs to be __________ flexible than prices so that __________ in the price level cause __________ in aggregate quantity supplied.
less; decreases; decreases
A nominal wage is
measured in current dollars rather than in constant dollars
As actual output falls below the potential level, which of the following must be true?
more resources become unemployed
The capital stock increases
only if net investment is positive
Given aggregate demand and aggregate supply schedule #2 in Exhibit 10-1, the equilibrium output level and price level are
output $6.5, price level 120
As an expansionary gap is closed in the long run by firms' actions,
output decreases and the price level increases
Aggregate supply reflects billions of production decisions made by
resource suppliers and firms
Which of the following is not assumed to be constant along a short-run aggregate supply curve?
the actual price level
Given the long-run aggregate supply curve, the aggregate demand curve determines
the price level but not the output level
If nominal wages are sticky in the downward direction,
unemployment may persist for long periods of time
If the actual price level exceeds the expected price level reflected in long-term contracts,
unemployment will decrease firms will find production more profitable than they had expected and will increase the quantity of output supplied
In the long run, the economy will produce at potential output if
wages and prices are sufficiently flexible
Potential output will decrease if
workers choose shorter work schedules in order to enjoy more leisure time
Consider Exhibit 10-12. Aggregate demand is represented by AD0 and the aggregate supply is AS100 since the expected price level is 100. Which of the following describes the current situation for this economy?
an expansionary gap exists
Which of the following would shift the LRAS curve to the right?
an improvement in technology
In the long run, an increase in aggregate demand will cause
an increase in the price level and no change in output
The graph in Exhibit 10-9 shows a(n)
increase in long-run aggregate supply
The graph in Exhibit 10-4 shows a(n)
increase in short-run aggregate supply
Given the aggregate demand curve, an increase in the supply of a productive resource will
increase the price level but leave output unchanged
The short-run aggregate supply curve slopes upward because quantity supplied
increases when the price level increases
A contractionary gap may be closed in the long run by a(n)
rightward shift of the short-run aggregate supply curve
In the short run, there is a positive relationship between
the actual price level and aggregate quantity supplied
Consider Exhibit 10-12. Aggregate demand is represented by AD0 and the aggregate supply is AS100 since the expected price level is 100. Which of the following identifies the the long-run equilibrium?
A
Suppose that the real wage remained unchanged between year 1 and 2 but the nominal wage increased from $20 to $24. What is true about the price level?
It rose by 20 percent.
Which of the following is true of the short-run aggregate supply curve?
It shows the relation between the price level and the quantity of aggregate output firms supply, other things constant.
Which of the following occurs as macroeconomic output expands in the short run?
All of the answers are correct
Which of the following is true about real and nominal wages?
Changes in the nominal wage will be the same as changes in the real wage only if the price level is constant.
Refer to Exhibit 10-11. Which point represents short-run equilibrium?
D
Which of the following is true of a beneficial supply shock?
It could lead to a lower price level.
Aggregate supply is the relationship between aggregate demand and the quantities of aggregate output firms are willing and able to produce, other things constant.
FALSE
Consider Exhibit 10-3. The short-run equilibrium output is Y1.
FALSE
Given aggregate demand and aggregate supply schedule #2 in Exhibit 10-1, the equilibrium output level and price level are $7.0 and 110
FALSE
In the long run, the price level is determined by aggregate supply.
FALSE
In the short run, the price level is determined solely by aggregate supply.
FALSE
Increases in the costs of producing each level of output will cause a rightward shift of the short-run aggregate supply curve.
FALSE
The amount by which actual output falls short of potential output is called an expansionary gap.
FALSE
The graph in Exhibit 10-4, when aggregate supply is AS, the equilibrium output and price level will be Y2 and P2.
FALSE
The shift from AS to AS' in Exhibit 10-4 would occur when the actual price level is higher than expectations.
FALSE
Which of the following would be evidence that a contractionary gap exists?
Help wanted advertising lower than usual, and the consumer price index lower than expected.
Which of the following is generally true of nominal wages?
Sustained and continuous (cyclical) unemployment suggests nominal wages do not fall quickly
Because nominal wages fall slowly, the supply-side adjustments needed to close a contractionary gap may take very long.
TRUE
If the actual price level is higher than the expected price level, the economy will expand in the short run.
TRUE
The expected price level is assumed to be constant along a given short-run aggregate supply curve.
TRUE
The long-run aggregate supply curve is vertical because potential real GDP is determined by resource availabilities and productivities.
TRUE
Wage rates are typically flexible upward but "sticky" downward.
TRUE
Which of the following is true in the long run?
The actual price level and the expected price level are equal. The long-run aggregate supply curve is vertical. The aggregate supply curve is the key determinant of the level of potential output.
If the economy were at its potential output level, which of the following is not true?
The actual unemployment rate would be greater than the natural rate. structural unemployment would be equal to zero The actual price level is greater than the expected price level. Firms' and workers' expectations about the price level are not accurate.
If the economy is simultaneously in long-run and short-run equilibrium, which of the following is not true?
The aggregate demand curve is horizontal at the potential output level.
Suppose that the actual and expected price levels are initially equal, and that the expected price level falls. Which of the following will occur over the long run? (Hint: Recall the actual price level is on the vertical axis.)
The short-run aggregate supply curve will shift to the left
In Exhibit 10-2, a contractionary gap would be represented by the distance
Y1 - Y2
In Exhibit 10-2, an expansionary gap would be represented by the distance
Y2 - Y1
Which of the following would shift the LRAS curve to the left?
a civil war
In Exhibit 10-6, the distance between Y1 and Y2 is called
a contractionary gap
Which of the following supply shocks would shift the aggregate supply curve inward?
a decrease in agricultural output
Which of the following changes best represents the effect on the U.S. of the oil embargo (a shut-off of oil from certain OPEC countries) of the 1970s?
a leftward shift of the aggregate supply curve
The potential level of output can be altered by changes in
a nation's stock of capital
Which of the following would cause the long-run aggregate supply curve to shift rightward?
a technological breakthrough with widespread practical applications that occurs in the microcomputer industry
The long-run aggregate supply curve is represented by
a vertical line
In long-run equilibrium,
actual output must equal potential output
An expansionary gap is equal to
actual short-run output minus potential output
In the short run, real and nominal GDP will both decrease whenever
aggregate demand decreases, but not always when aggregate supply decreases
If nominal wage rates increase by 2 percent per year and the price level increases by 5 percent per year, real wages will
decrease by 3 percent per year
The movement in Exhibit 10-10 could be caused by a(n)
decrease in the size of the labor force
Consider Exhibit 10-3. In this situation, long-run equilibrium would be established by a(n)
decrease of short-run aggregate supply to close the expansionary gap
Stagflation is defined as
decreased output accompanied by a higher price level
The short run is a period of time
during which resource buyers and sellers cannot adjust fully to changes in the price level
Exhibit 10-4 shows that the
economy will experience deflation
Given implicit or explicit resource price agreements, if the actual price level is below the expected price level, the
economy will move leftward along the short-run aggregate supply curve
Beneficial supply shocks include all of the following except one. Which is the exception?
establishment of the Occupational Safety and Health Administration (OSHA)
Between 1994 and 2004, Jack's salary increased from $100,000 to $200,000 per year and the price index increased from 100 to 300 during the same period. Which of the following statements best describes Jack's situation?
his real income decreased and money income increased
As a contractionary gap is closed in the long run,
output increases and the price level decreases
During a recession
output is below potential and unemployment is above the natural rate contractionary gaps may persist if wages are not very flexible
The movement shown in Exhibit 10-9 could be caused by
positive net investment
The aggregate supply curve reflects the relationship between the
price level and the quantity of all goods supplied in the economy
If the expected price level exceeds the actual price level
production becomes less attractive to firms
If the expected price level falls below the actual price level,
production becomes more attractive to firms firms
A rising price level in the short run may create an incentive for firms to increase production because
profits will increase
As actual output rises above the potential level, which of the following must be true?
real GDP rises
If nominal wage rates increase by 5 percent per year and the price level increases by 3 percent per year, which of the following is correct?
real wages increase by 2 percent per year
If the price level rises by 4 percent and the nominal wage rises 6 percent, the real wage
rises by 2 percent
The various output levels produced at different price levels is reflected in the
short-run aggregate supply curve
If the economy is at point M in Exhibit 10-5,
the actual price level is higher than expected with a $200 billion expansionary gap the short-run supply curve will shift to SRS109 and the expansionary gap will be eliminated
In Exhibit 10-3, at income level Y2
the actual unemployment rate equals the natural rate of unemployment
If the actual price level in Exhibit 10-2 exceeds the expected price level, then
the actual unemployment rate is below the natural rate
In Exhibit 10-6, at income level Y1
the actual unemployment rate is greater than the natural rate of unemployment
In constructing the short-run aggregate supply curve, we define the short run as the period in which
the costs of some resources are fixed
Aggregate supply expresses the relationship between
the price level in the economy and the aggregate output firms will produce, other things constant
If the actual price level turns out to be lower than expected,
the unemployment rate will probably rise businesses cut back production