ECON102 Lecture Notes - Lecture 13: Potential Output, Money Supply

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puceclam474

25 Feb 2016

School

University of Waterloo

Department

Economics

Course

ECON102

Professor

Maryann Vaughan

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ECON102 Full Course Notes

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In long-run equilibrium, real gdp = potential gdp. If real gdp (does not equal) potential gdp, the money wage adjusts. If money wage is too high: short-run equilibrium is below potential gdp, unemployment rate is high, supply of labour > demand for labour, money wage rate falls, sas shifts right. If the money wage is too low: short-run equilibrium is above potential gdp, unemployment rate is low, demand for labour > supply of labour, money wage rate rises, sas shifts left. Growth rate of money supply + 0 = inflation + economic growth. If %(change)m > %(change)y, the result will be inflation. Adverse supply shock: one that increases a firm"s costs and, as a consequence, firms will produce less, the sas curve shifts to the left. A firm"s cost of production increases and the firm produces less. The outcome is lower real gdp (recession) and a higher price level (inflation: we call this stagflation.

Related Questions

The demand for money
A) d and e are correct
B) all of the following are correct
C) decreases as the average selling price of a unit of outputincreases
D) increases as GDP increases
E) is increased by credit card usage
2. The higher the interest rate, the more of their wealth peoplewill hold as money.
A) True
B) False
3. The money demand curve slopes
A) downward because the cost of holding money decreases as theinterest rate decreases
B) downward because the cost of holding money increases as theinterest rate decreases
C) upward because people demand more money as GDP increases
D) upward because people demand more money as GDP decreases
E) downward because people demand more money as the price levelincreases
4. Which of the following, other things constant, will shift themoney demand curve to the left?
A) an increase in the interest rate
B) a decrease in the interest rate
C) a decrease in real GDP
D) an increase in real GDP
E) an increase in the price level
5. An increase in the money supply will
A) increase the demand for money at each interest rate
B) decrease the demand for money at each interest rate
C) lead people to try to exchange money for interest-bearingassets
D) lead people to try to exchange interest-bearing assets formoney
E) increase the interest rate
6. When an increase in the money supply reduces the interest rate,investment and nominal GDP increase.
A) True
B) False
7. In the short run, a decrease in the money supply will cause adecrease in Gross Domestic Product and a decrease in the pricelevel.
A) True
B) False
8. The demand curve for investment is graphed with __________ onthe vertical axis and __________ on the horizontal axis.
A) the interest rate; investment
B) investment; the interest rate
C) the price level; investment
D) investment; the price level
E) real GDP; investment
9. As the interest rate increases,
A) the demand for investment curve shifts to the right
B) the demand for investment curve shifts to the left
C) there is a movement downward along the demand for investmentcurve
D) there is a movement upward along the demand for investmentcurve
E) GDP increases
10. If the economy experiences a contractionary gap and the Fedstimulates the economy, then:
A) The money supply is increasing because the Fed prints moremoney
B) The money supply is decreasing because the Fed hoardsmoney
C) The money supply is increasing because the Fed makes open-marketpurchases
D) The money supply is decreasing because the Fed makes open-marketsales
E) There is no change in the money supply because the Fed cannotinfluence the money supply
11. If the Fed decreases the money supply, GDP
A) increases because the resulting increase in the interest rateleads to a decrease in investment
B) increases because the resulting decrease in the interest rateleads to an increase in investment
C) decreases because the resulting increase in the interest rateleads to a decrease in investment
D) decreases because the resulting increase in the interest rateleads to an increase in investment
E) decreases because the resulting decrease in the interest rateleads to an increase in investment
12. An increase in the money supply can increase the price level,real GDP, or both, but it is impossible to tell exactly what willhappen without knowing the slope of the aggregate supplycurve.
A) True
B) False
13. If the economy experiences an expansionary gap and the Fedsells US government securities in the open-market, then:
A) Money supply increases, investment increases, aggregate demandincreases
B) Money supply increases, the interest rate increases, and theaggregate demand increases
C) Money supply decreases, the interest rate decreases, and theaggregate demand falls
D) Money supply decreases, the investment decreases, and theaggregate demand decreases
E) Interest rate falls, investment falls, aggregate demandincreases
14. If the money supply equals $1,000 and nominal GDP equals$3,000, then V
A) equals 1/3
B) equals 3
C) equals 3 million
D) cannot be determined since we do not know anything aboutprices
E) cannot be determined since we do not know anything about realGDP
15. If the money supply is increasing at a constant 8 percent,velocity is constant, real GDP is increasing at 5 percent, and theinflation rate is 3 percent, which of the following is true?
A) The growth rate of GDP is too low to be maintained.
B) The inflation rate is too low to be maintained.
C) Velocity is too low to be maintained.
D) The money supply growth rate is too low to be maintained.
E) This situation can continue indefinitely.
16. If real output and velocity are stable and predictable, thenthe equation of exchange can be used to derive a simplerelationship between
A) the money supply and the price level
B) the money supply and the interest rate
C) the money supply and the foreign exchange rate
D) velocity and real GDP
E) velocity and nominal GDP
17. For the quantity theory of money to yield usefulpredictions,
A) fiscal policy must be ineffective in altering aggregatedemand
B) fiscal policy must be effective in altering aggregatedemand
C) the economy must be operating at the potential level of realGross Domestic Product
D) velocity must be stable or predictable
E) velocity must be unstable
18. A rising rate of inflation
A) makes people more willing to hold money as an asset
B) reduces the usefulness of money as a store of value and thusincreases the velocity of money
C) increases the usefulness of money as a medium of exchange andthus reduces the velocity of money
D) is usually preceded by a reduction in the money supply
E) does not, apparently, have any effect on the velocity ofmoney
19. There is considerable disagreement about whether the Fedshould
A) engage in open market operations
B) have the power to set reserve requirements
C) reduce the money supply when the economy is growing
D) allow banks to invest in the stock market
E) attempt to control interest rates or should instead attempt tocontrol the money supply
20. For interest rates to remain stable during economic expansions,the growth rate of the money supply should
A) exceed the growth in the demand for money
B) just match the growth in the demand for money
C) be less than the growth in the demand for money
D) be zero
E) just match the growth in nominal GDP

salmonpug424

MBA502, Economics for Business

Apply and Discover 7.2

You are responsible for economic policymaking in your country. Your desire is to eliminate inflation, keeping prices absolutely stable at P = 100, no matter what happens to output. Currently, the economy is in equilibrium at Q = 3200 (where Q = potential GDP) and P = 100. You can use monetary and fiscal policies to affect aggregate demand but you cannot affect aggregate supply in the short run. How would you respond to the following scenarios?

Explain and illustrate how each of these events would affect aggregate demand, aggregate supply, and prices, then explain how you would respond with economic policies.

1. A surprise increase in investment spending

In the short run, when investment spending increases, it results in an increase in Aggregate Demand (AD), which in turn pushes up both GPD and the price index.

To counterbalance this development, government might pursue contractionary fiscal policy by increasing taxes (to reduce consumption) or decreasing its own investment and spending so that the AD curve shifts back to its original position. Alternatively, the government can pursue contractionary monetary policy by reducing money supply and increasing interest rate to discourage economic activity.

2. Catastrophic floods that cause a sharp food price increase

In this case, sharp food shortages and consequent price increases cause a shock-type adjustment of the aggregate supply curve (it shift up and to the left). The result is a lower GDP and a higher price level.

The government cannot do anything to adjust AS in the short run. However, if the goal is to maintain the price level constant, the government can decide to do something to decrease the aggregate demand to force prices to come down, though it will be accompanies by another contraction in GDP and so it would not be a smart thing to do.

To cause AD to decrease, the government, similar to example above, can pursue fiscal policy (increase taxes, decrease spending) or monetary policy (reduce supply of money to the economy and thus increase interest rates).

3. A productivity decline that reduces potential output

In this case, AS shifts to the left, as was the case in example 2. As a result, price levels go up, as the same amount of money is chasing the reduced amount of goods and services, and GDP declines.

Government remedies here would be centered about causing AD to decrease through contractionary fiscal (higher taxes, lower spending) or monetary (reduce money supply and increase interest rates) policy. Again, this decision reduces inflation but at expense of GDP, as real output shrinks further.

4. A deep depression in East Asia that causes a sharp decrease in net exports to the United States

A decrease in exports of goods to from the United States to Asia will mean that the aggregate demand (which includes net exports

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1. According to the Solow model, an increase in the capital-labor ratio will a. always increase steady state consumption per worker b. reduce steady state consumption per worker if the capital-labor ratio is below the Golden rule capital stock c. always reduce steady state consumption per worker d. increase steady state consumption per worker if the capital-labor ratio is below the Golden rule capital stock

2. In a steady state a. capital and labor, by definition, are inversely related to one another b. both consumption per worker and the capital-labor ratio are constant c. consumption per worker can change, but the capital-labor ratio is constant d. consumption per worker is constant, but the capital-labor ratio can change

3. Which of the following changes would lead, according to the Solow model, to a higher level of long-run output per worker? a. An increase in the saving rate b. A lower level of capital per worker c. A decrease in productivity d. A rise in the rate of population growth

4. In the long run, a reduction in productivity will cause a. an increase in the capital-labor ratio and a decrease in consumption per worker b. a decrease in the capital-labor ratio and a decrease in consumption per worker c. a decrease in the capital-labor ratio and an increase in consumption per worker d. an increase in the capital-labor ratio and an increase in consumption per worker

5. An increase in the growth rate of population in a steady-state economy would cause a. a pivot down and to the right in the investment line b. a parallel shift downward in the investment line c. a pivot up and to the left in the investment line d. a parallel shift upward in the investment line 1 2

6. In the efficiency wage model, an increase in productivity would a. have no effect on either output or the real wage b. increase output but have no effect on the real wage c. decrease the real wage but have no effect on output d. increase output but decrease the real wage

7. Keynesian economists believe that in the short run, a. money neutrality does not exist and prices adjust rapidly b. money neutrality does not exist and prices do not adjust rapidly c. money neutrality exists and prices adjust rapidly d. money neutrality exists and prices do not adjust rapidly

8. If the expected inflation rate is unchanged, a fall in the natural rate of unemployment would a. not shift the Phillips curve b. shift the Phillips curve to the left c. shift the Phillips curve to the right d. shift the Phillips curve to the left and shift the long-run Phillips curve to the right

9. Classical economists believe that in the short run, a. money neutrality does not exist and prices adjust rapidly b. money neutrality does not exist and prices do not adjust rapidly c. money neutrality exists and prices do not adjust rapidly d. money neutrality exists and prices adjust rapidly

10. The fact that the long-run Phillips curve is vertical implies that a. money canât affect inflation in the long run b. money is neutral in the long run c. monetary policy canât affect unemployment d. there is a natural rate of inflation

1. Briefly explain the shape of the per-worker production curve in the Solow model. If investment per worker initially exceeds saving per worker, how is the steady state capital-labor ratio achieved?

2. Describe the effects of a rise in the domestic real interest rate on the exchange rate and on both domestic and foreign net exports.

3. For each of the following changes, what happens to the real interest rate and output in the short run, before the price level has adjusted to restore general equilibrium? a. Wealth declines b. Money supply declines c. The future marginal productivity of capital declines d. Expected inflation rises e. Future income rises

ECON102 Lecture Notes - Lecture 13: Potential Output, Money Supply

ECON102 Full Course Notes

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