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EC140 Lecture Notes - Lecture 21: Output Gap, Shortage, Capacity Utilization

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School
WLU
Department
Economics
Course
EC140
Professor
David Johnson

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Document Summary

Long term changes in gdp usually involve the change of potenial gdp, with litle to no change in the output gap. When studying long-run trends in the gdp, the economists focus on the change in potenial output, when studying short-run luctuaions, economists focus on the change in the output gap. Any change in the gdp can be decomposed conceptually into 3 things - a change in factor supply, a change in factor uilizaion and a change in producivity. The two main factors of producion labour and capital. Labour: the economy supply in labour can increase for 2 reasons (long term changes: an increase in the populaion immigraions, birth rates, or decreased mortality rate. Increase the fracion of the populaion who chooses to seek employment. Labour force paricipaion rate: the fracion of people who choose to seek employment of enire populaion (66% in canada) Capital: computers, machines, factories, and warehouses (also a long term change gradual)

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Related Questions

Chapter 10

3) Answer questions a through f on the basis of the following graph:

If the actual price level exceeds the expected price level reflected in long-term contracts, real GDP equals __________ and the actual price levels equals _________ in the short run.

The situation described in part (a) results in a(n) _________ gap equal to _______.

If the actual price level is lower than the expected price level reflected in long-term contracts, real GDP equals ________ and the actual price level equals _______ in the short run.

The situation described in part (c) results in a(n) ________ gap equal to _______.

If the actual price level equals the expected price level reflected in long-term contracts, real GDP equals _______ and the actual price levels in the short run.

The situation described in part (e) results in a(n) _____gap equal to ______.

5) List three factors that can change the economy’s potential output. What is the impact of shifts of the aggregate demand curve on potential output? What is the impact of shifts of the aggregate demand curve on potential output? Illustrate your answers with a diagram.

6) Give an example of an adverse supply shock and illustrate graphically. Now do the same for a beneficial supply shock.

Question 2

  1. For any given expected inflation rate, short-run aggregate supply curves show the relationship between

    the money supply and growth rate of output.

    inflation and growth rate of output.

    production factors and wages.

    inflation and wages.

1 points

Question 3

  1. Why is the SRAS curve steeper above its intersection with the Solow growth curve?

    Wages are stickier in the upward direction.

    Wages are less sticky in the upward direction.

    Lower inflation will lead to faster growth.

    Employees become less motivated to work during times of unexpected inflation.

1 points

Question 4

  1. What factors triggered the Great Depression?

    decreased consumer spending and tight monetary policy

    decreased investment and increased inflation

    decreased employment and increased money supply

    decreased inflation and increased income taxes

1 points

Question 5

  1. How might changes in the money supply be non-neutral in the short run?

    As the amount of money circulating in the economy changes before prices respond, consumers' purchases change accordingly, which leads producers to change production levels.

    When money supply changes in the short run, it will affect nominal, but not real, variables in the short run.

    As money growth increases at a faster rate, it will cause real GDP to grow at an equally faster rate.

    If producers expect inflation to increase, they will increase supply in order to sell before the arrival of inflation.

1 points

Question 6

  1. For a given nominal interest rate, an increase in deflation will cause the real rate of interest to

    remain relatively constant.

    increase.

    decrease.

    become unpredictable.

    Question 8

    Which of the three price indexes measures the average price level of the largest total number of goods?

    the consumer price index

    the GDP deflator

    the producer price index

    Each price index accomplishes the same task.

    The textbook uses the

a) In the AD-AS model, stagflation does not persist, because the working of the self-correcting mechanism of the economy _____ the level of output and _____ the price level until the economy eventually returns to a long-run equilibrium state, where actual output _____ potential output.
decreases; decreases; falls short of
increases; decreases; equals
decreases; increases; exceeds
decreases; increases; equals
increases; decreases; exceeds
b) The LRAS curve is drawn as a vertical line at potential output (Y*) to indicate that
Y* is independent of the price level and that actual output Y > Y* in the long run
Y* equals actual output (Y) in the long run
Y* is independent of the price level and that actual output Y = Y* in the long run
Y* is independent of the price level
Y* is independent of the price level and that actual output Y < Y* in the long run
c) Stagflation arises in the context of the AD-AS model when some external factor causes
the LRAS curve to shift to the right
the AD curve to shift leftwards
the SRAS curve to shift downwards
the SRAS curve to shift upwards
the AD curve to shift rightwards
d) If the SRAS curve is positively sloped, then a decrease in the demand for Canadian-made goods in Europe will lead to _____ in the price level, in the short run.
either an increase or a decrease
no change
an increase
a decrease
an initial increase, and then a decrease
e) Which of the following will shift the aggregate demand curve to the right?
Consumers become pessimistic about the future
A new technology is developed that will increase profits
Income taxes are raised
Foreign economies fall into recession, reducing their demand for domestic exports
The government reduces purchases to balance the budget
f) Suppose a stock market crash decreases the stock of household wealth and therefore causes autonomous consumption to fall. Which of the following is the likely result?
A leftward shift the AD curve
There will be no movement of the AD curve
A movement down the AD curve
A movement up the AD curve
A rightward of the shift the AD curve
g) An economy is characterized by the AD equation P = 200 ? 0.02Y, SRAS equation P = 100 and LRAS equation Y* = 5000. In the absence of any change in policy or exogenous shocks, this economy will achieve a long-run price level of
100
110
120
90
105
h) The AD-AS model depicts a self-correcting economy. This means that the price level in the model adjusts automatically in response to a(n) _____ gap, so as to eliminate the _____ gap in the long run, without requiring any help from government policies.
recessionary; recessionary
recessionary; expansionary
expansionary; expansionary
output; output
expansionary; recessionary
i) The aggregate demand curve shows
the amount of planned aggregate expenditure (and output) at the current price level
the amount of planned aggregate expenditure (and output) at an average price level
the amount of planned aggregate expenditure (and output) at a constant price level
the amount of planned aggregate expenditure (and output) at various price levels
the amount of planned aggregate expenditure (and output) at last year's price level
j) Consider an economy initially at long-run equilibrium with output (Y) equal to potential output (Y*). If the SRAS is positively sloped, then a shift to the right of the AD curve will lead to _____ in the price level, in the short run. In the long run, the SRAS curve will shift to the _____ and the equilibrium will be at __________.
an increase; left; Y = Y*
a decrease; right; Y > Y*
an increase; right; Y = Y*
a decrease; left; Y > Y*
no change; left; Y = Y*