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EC140 Chapter Notes - Chapter 23: Supply Shock, Aggregate Supply, Government Spending

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graykangaroo709
4 Feb 2016
School
WLU
Department
Economics
Course
EC140
Professor
Ken Jackson

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EC140 Full Course Notes
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Document Summary

What happens if prices rise: quantity demanded falls, effect: The money that people hold can buy fewer goods. People are effectively poorer consumption falls. Similarly; a fall in prices: value of money held goes up, consumption therefore rises. Ad curve shows level of real gdp for each price level where desired aggregate expenditure equals actual gdp: equilibrium output from the simple macro model for each price level. Changes in price level cause: shifts in the ae curve, movements along the ad curve. As prices rise: people are poorer, consumption falls, foreign goods are relatively cheaper, imports rise, exports fall. All three changes mean that as prices rise, real gdp falls: move up and left along the ad curve. If ae shifts up, ad increases and the ad curve shifts right: increase in income in export markets, increase in business/consumer optimism, increase in government spending. As ae shifts up, real gdp increases. Shift derived from simple multiplier: 1.

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Related Questions

10,A change in the price level​ ________ the AE curve and​ ________ the AD curve.
A.
​shifts; shifts
B.
has no effect​ on; results in a movement along
C.
results in a movement​ along; results in a movement along
D.
results in a movement​ along; shifts
E.
​shifts; results in a movement along

17,When the price level​ falls, the aggregate planned expenditure curve shifts​ ________, equilibrium expenditure​ ________ and there is a movement​ ________ along the aggregate demand curve.
A.
​upward; increases; upward
B.
​downward; decreases; downward
C.
​upward; decreases; downward
D.
​upward; increases; downward
E.
​downward; increases; upward

21,Which of the following increases the size of the expenditure​ multiplier?
A.
an increase in autonomous spending
B.
a decrease in the marginal propensity to consume
C.
a decrease in the marginal propensity to import
D.
an increase in the marginal income tax rate
E.
an increase in investment

23,If the quantity of real GDP demanded is greater than the quantity of real GDP​ supplied, then
A.
the price level falls and firms decrease production.
B.
aggregate demand changes to restore equilibrium.
C.
the economy must be producing at potential GDP.
D.
the price level falls to restore the macroeconomic equilibrium
E.
the price level rises and firms increase production.


24, ________ can trigger an expansion.
A.
Equality between aggregate expenditure and real GDP
B.
A decrease in induced expenditure
C.
A downward shift of the AE line
D.
An increase in autonomous expenditure
E.
A decrease in autonomous expenditure


1. Which of the following is likely to happen if the Fed buys Treasury securities from banks?

  interest rate rises; investment falls
  interest rate rises; investment rises
  interest rate falls; investment rises
  interest rate falls; investment falls

2. The main goal of monetary policy is to shift

  AD.
  SRAS.
  LRAS.
  both AD and SRAS.
  both AD and LRAS.

3. Which of the following is true regarding the effects of an expansionary monetary policy?

  Printing more money will affect real GDP only in the short run because all prices do not adjust fully in the short run.
  Printing more money will affect real GDP both in the short and long run because inflation is a natural occurrence of expansionary monetary policy.
  Printing more money will not lower the value of money in the short run because prices are fully flexible in the short run.
  Printing more money will ultimately raise the value of money in the long run because prices are fully flexible in the long run.

4. In which of the following cases are you likely to be adversely affected by unexpected inflation?

  You, the owner of a local restaurant, charge the price of lamb lasagna as per the daily market rate of lamb.
  You purchase Mountain Dew every day from the dormitory vending machine, which keeps its prices fixed for the entire school year.
  You, the owner of an airline company, sign a two-year contract for airline fuel.
  You deposit $10,000 in a bank account for 5 years for a fixed interest rate of 1%.

5. The Phillips curve depicts the relation between

  real GDP and price level.
  price level and inflation rate.
  unemployment rate and inflation rate.
  unemployment rate and real GDP.

6. Which of the following statements is true regarding the shapes of short-run and long-run Phillips curves?

  The short-run Phillips curve is vertical and the long-run Phillips curve is downward sloping.
  The short-run Phillips curve is downward sloping and the long-run Phillips curve is vertical.
  Both the short-run and long-run Phillips curves are downward sloping.
  Both the short-run and long-run Phillips curves are vertical.

7. Suppose the table below lists the actual annual inflation rates for 2010 to 2015. What would be the most likely predictions people make about the inflation rate for 2016 based on adaptive and rational expectations theories, respectively?

Year Actual Inflation rate
2010 0%
2011 0%
2012 3%
2013 3%
2014 6%
2015 6%
   
  6% and 3%
  6% and 9%
  6% and 12%
  9% and 6%
  3% and 6%

8. Which of the following can change relatively quickly in the short-run?

  the price of a latte in a coffee shop
  the salary of a finance professor
  the rent paid for a store

1. Which of the following shifts aggregate demand to the right?
a. Congress reduces purchases of new weapons systems.
b. US exports increase.
c. The price level falls
d. New developments in IT increase the productivity of most manufacturing industries in the US.

2. Suppose the EPA introduces new smog regulation that makes it costlier to produce cars. As a result, aggregate supply falls (primary effect) and firms cut back on production. With less output in the economy available for consumers, consumers bid up the prices of available output. With higher prices, firms choose to produce more (secondary effect).
Which of the following best explains what the net effect on GDP?
a. The two effects should essentially cancel out, with little to no effect on GDP, but the price level clearly rises.
b. It is impossible to say what happens to GDP without being able to compare the magnitudes of the two effects.
c. Real GDP rises as the secondary effect dominates the primary effect.
d. Real GDP falls since the primary effect dominates the secondary effect.

3. A Keynesian economist who observes an output gap would conclude that
a. aggregate demand should be shifted to the right.
b. a policy of deregulation would be better than demand management policy
c. aggregate supply should be shifted to the right
d. All proposed answer options are correct

4. Monetarists believe
a. the Aggregate Supply curve is upward-sloping (but not vertical) over all time frames.
b. the Aggregate Supply curve can be treated as horizontal in the long run (over 10 years
c. the Aggregate Supply curve is vertical only in the very long run (over 20 years).
d. the Aggregate Supply curve can be treated as vertical in the short-to-medium run (1-2 years)

5. Suppose the price of oil increases due to conflict in the Middle East. How will this be illustrated in the AD-AS model?
a. The aggregate demand curve will shift to the left
b. The aggregate supply curve will shift to the left.
c. The aggregate demand curve will shift to the right
d. The aggregate supply curve will shift to the right

6. Assume a Keynesian AS curve. In the short run, when there is a large output gap
a. contractionary demand management policy is likely to be highly inflationary
b. expansionary demand management policy does not cause much inflation.
c. expansionary demand management policy is likely to be highly inflationary
d. the government should use contractionary demand management policy

7. As a result of Bush tax cuts that partially expired in January 2013, the marginal tax rates for some households increased and these households paid higher taxes. Which of the following would be the best description of the tax cut expiration?
a. Rightward shift in AS
b. Rightward shift in AD
c. Leftward shift in AD
d. Leftward shift in AS

8. Suppose that the U.S. government increases income taxes on individuals earning more than $500,000/year and uses the revenue from this tax increase to subsidize the cost of energy for businesses. How will this policy change affect the U.S. economy?
a. The effect on output is ambiguous but price level will decrease for sure
b. The effect on both output and price level is ambiguous.
c. The effect on price level is ambiguous but output will increase for sure
d. The effect on price level is ambiguous but output will decrease for sure

9. If Australia, which imports goods from the United States, went into recession, we would expect that U.S. net exports would
a. rise, making aggregate demand shift right.
b. rise, making aggregate demand shift left
c. fall, making aggregate demand shift left
d. fall, making aggregate demand shift right

10. Suppose that Greece decides to exit the European Union and the Euro Zone, causing a boost in business confidence in European markets. How would you illustrate the primary effect of Greece’s decision in the AD-AS model for the EU economy?

Note: for this question, assume that Y in the AD-AS model represents output (GDP) of EU member countries without Greece.
a. a shift in the aggregate supply curve to the left and a shift in the aggregate demand curve to the left
b. a shift in the aggregate demand curve to the right
c. a shift in the aggregate demand curve to the left
d. movement along the aggregate demand curve to the left

11. The Austrian school of thought believes that demand management policy should not be used because
a. big government prefers deregulation, which shifts aggregate supply
b. the economy is always at full employment
c. shifting AD to the right is likely to cause deflation
d. big government has a bias towards inflationary policy