AS.180.101 Lecture Notes - Lecture 12: Real Interest Rate, Aggregate Demand, Aggregate Supply

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29 Aug 2016

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A model that links output changes to changes in price level. Ae models looks only at output swings. If prices go down, its easier to manage household purchases with less cash. People buy bonds, prices rise, yields fall. A 12 foot flat screen tv costs ,200. A vacation to paris for a month cost ,700. He contemplates buying two of these three items, after graduation. Moped=,680 tv=,040 vaca. =,640 ernie now buys only one of the items. Households keep their financial wealth in various places: cash, bonds, stocks. Households hold enough cash to make it easy to pay their bills. If prices jump, households must sell some bonds and stocks to increase their cash holdings. Sell bonds, prices fall, interest rates rise. Movement along ad curve: price level falls and output rises. Movement of ad curve: price level and gdp changes. Our ae model assumes the overall price level is fixed reflects assumption that there is enough capacity to increase output.

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MACROECONOMICS

1. Which one of the following is not a determinant of aggregate demand?

a. Investment expenditure

b. Technology

c. Consumption expenditure

d. Net exports

2. An improvement in technology will?

a. Decrease aggregate demand

b. Increase aggregate demand

c. Increase aggregate supply

d. Decrease aggregate supply

3. Oil price changes in the mid 80's are an example of?

a. An exiernal supply shock increasing prices and reducing real income

b. An external supply shock decreasing prices and raising real income

c. An external supply shock increasing prices and reducing real in come

d. An external demand shock inceasing prices and reducing real in come

4. The oil shock in 1979-80 was an example of?

a. An external supply shock decreasing prices and increasing real income

b. An external supply shock increasing prices and decreasing real income

c. An external demand shock decreasing prices and real income

d. An external demand shock increasing prices and real income

5. Which one of the following does not cause the aggregate demand curve to slop downward?

a. Changes in relative prices between foreign and domestic goods

b. Wealth effect

c. Changes in real output

d. Changes in interest rate

6.Which one of the following is not determinant of aggregate supply?

a. Productivity

b. Disposal income

c. Capacity and investment plan

d. Cost and availability of resources

7. Which of the following relationship is correct?

a. Equilibrium employment and full employment may not be the same

b. Equilibrium employment and full employment are not related

c. Equilibrium employment and full employment are always the same

d. Equilibrium employment and full employment are never the same

8. Which of the following was not a factor limiting the severity of effects of the oil sopply shock of 1979-80?

a. Increase in use of alternative sources of energy

b. More efficient use of energy

c. Increased supplies of non-OPEC oil

d. More rapid worldwide economic growth

9. Which one of following does not cause the aggregate demand curve to slop downward?

a. Changes in relative prices between foreign and domestic goods

b. Interest rate changes

c. Wealth effect

d. Chnages in real output

10. With aggregate demand shocks?

a. teh aggregte supply curve moves up the aggregate demand curve and increases price and reduces real income

b. the aggregate demand curves moves up the aggregate supply curve and increases prices and real income

c. the aggregate demand curves moves down the aggregate supply curve and increases both prices and real income

d. the aggregate supply curve moves down the aggregate demand curve and reduces prices and increases in real income

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 Greeceâs 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

rosedolphin326

1. Explain how the real balance effect works?

2. How will either the AD curve or SRAS curve shift as a result of each of the following changes:

A rise in the interest rate

An adverse supply shock

A rise in wealth

3. Explain what happens to U.S. net exports and U.S. aggregate demand as the dollar depreciates

4. Explain what happens to aggregate demand in each of the following cases: (a) The interest rate rises; (b) Wealth falls; (c) The dollar depreciates relative to foreign currencies; (d) Households expect lower prices in the future; (e) Business taxes rise.

5. Explain how expectations about future sales will affect investment.

6. Explain how each of the following can affect short-run aggregate supply: (a) An increase in wage rates; (b) A beneficial supply shock; (c) An increase in the productivity of labor; (d) A decrease in the price of a nonlabor resource (such as oil).

(a) An increase in SRAS that is greater than the increase in AD will lead to an increase in Real GDP and a fall in the price level.

(b) A decrease in AD that is greater than the increase in SRAS will lead to a fall in both the Real GDP and the price level.

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AS.180.101 Lecture Notes - Lecture 12: Real Interest Rate, Aggregate Demand, Aggregate Supply

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