The short-run quantity of output supplied by firms will fall short of the natural level of output when the actual price le the price level that people expected.

Brief Principles of Macroeconomics (MindTap Course List)
8th Edition
ISBN:9781337091985
Author:N. Gregory Mankiw
Publisher:N. Gregory Mankiw
Chapter15: Aggregate Demand And Aggregate Supply
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5. Why the aggregate supply curve slopes upward in the
short run
In the short run, the quantity of output supplied by firms ca
deviate from the natural level of output if the actual price
level deviates from the expected price level in the econom
number of theories explain reasons why this might happer
For example, the sticky-price theory asserts that the outp
prices of some goods and services adjust slowly to chang
in the price level. Suppose firms announce the prices for th
products in advance, based on an expected price level of 1
for the coming year. Many of the firms sell their goods
through catalogs and face high costs of reprinting if they
change prices. The actual price level turns out to be 110.
Faced with high menu costs, the firms that rely on catalog
sales choose not to adjust their prices. Sales from catalog
will
and firms that rely on catalogs will respond by
the quantity of output they supply. If enough firms face
high costs of adjusting prices, the unexpected increase in
price level causes the quantity of output supplied to
the natural level of output in the short run.
Suppose the economy's short-run aggregate supply (AS)
curve is given by the following equation:
Quantity of Output Supplied Natural Level of Output + ax (Price Level Actual-Price Level Expected)
The Greek letter represents a number that determines ho
much output responds to unexpected changes in the price
level. In this case, assume that a $2 billion. That is, when the
actual price level exceeds the expected price level by 1, the
quantity of output supplied will exceed the natural level of
output by $2 billion.
Suppose the natural level of output is $60 billion of real GD
and that people expect a price level of 110.
On the following graph, use the purple line (diamond symbol
Transcribed Image Text:5. Why the aggregate supply curve slopes upward in the short run In the short run, the quantity of output supplied by firms ca deviate from the natural level of output if the actual price level deviates from the expected price level in the econom number of theories explain reasons why this might happer For example, the sticky-price theory asserts that the outp prices of some goods and services adjust slowly to chang in the price level. Suppose firms announce the prices for th products in advance, based on an expected price level of 1 for the coming year. Many of the firms sell their goods through catalogs and face high costs of reprinting if they change prices. The actual price level turns out to be 110. Faced with high menu costs, the firms that rely on catalog sales choose not to adjust their prices. Sales from catalog will and firms that rely on catalogs will respond by the quantity of output they supply. If enough firms face high costs of adjusting prices, the unexpected increase in price level causes the quantity of output supplied to the natural level of output in the short run. Suppose the economy's short-run aggregate supply (AS) curve is given by the following equation: Quantity of Output Supplied Natural Level of Output + ax (Price Level Actual-Price Level Expected) The Greek letter represents a number that determines ho much output responds to unexpected changes in the price level. In this case, assume that a $2 billion. That is, when the actual price level exceeds the expected price level by 1, the quantity of output supplied will exceed the natural level of output by $2 billion. Suppose the natural level of output is $60 billion of real GD and that people expect a price level of 110. On the following graph, use the purple line (diamond symbol
Suppose the economy's short-run aggregate supply (AS)
curve is given by the following equation:
Quantity of Output Supplied = Natural Level of Output + ax (Price Level Actual-Price Level Expected)
The Greek letter & represents a number that determines ho
much output responds to unexpected changes in the price
level. In this case, assume that a = $2 billion. That is, when the
actual price level exceeds the expected price level by 1, the
quantity of output supplied will exceed the natural level of
output by $2 billion.
Suppose the natural level of output is $60 billion of real GD
and that people expect a price level of 110.
On the following graph, use the purple line (diamond symbol
plot this economy's long-run aggregate supply (LRAS) curve
Then use the orange line segments (square symbol) to plot
economy's short-run aggregate supply (AS) curve at each of
the following price levels: 100, 105, 110, 115, and 120.
125
120
110
100
95
85
80
75
0 10
20
50 60
OUTPUT (Billions of dollars)
80 90 100
D
AS
LRAS
The short-run quantity of output supplied by firms will fall
short of the natural level of output when the actual price le
the price level that people expected.
Transcribed Image Text:Suppose the economy's short-run aggregate supply (AS) curve is given by the following equation: Quantity of Output Supplied = Natural Level of Output + ax (Price Level Actual-Price Level Expected) The Greek letter & represents a number that determines ho much output responds to unexpected changes in the price level. In this case, assume that a = $2 billion. That is, when the actual price level exceeds the expected price level by 1, the quantity of output supplied will exceed the natural level of output by $2 billion. Suppose the natural level of output is $60 billion of real GD and that people expect a price level of 110. On the following graph, use the purple line (diamond symbol plot this economy's long-run aggregate supply (LRAS) curve Then use the orange line segments (square symbol) to plot economy's short-run aggregate supply (AS) curve at each of the following price levels: 100, 105, 110, 115, and 120. 125 120 110 100 95 85 80 75 0 10 20 50 60 OUTPUT (Billions of dollars) 80 90 100 D AS LRAS The short-run quantity of output supplied by firms will fall short of the natural level of output when the actual price le the price level that people expected.
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