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ECON 1115 Lecture Notes - Lecture 23: Phillips Curve, Real Interest Rate, Real Wages

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cerisegiraffe538
13 Jul 2015
School
Northeastern University
Department
Economics
Course
ECON 1115
Professor
Gerald Porter( G)

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Document Summary

Econ 1115: principles of macroeconomics- lecture 23: phillips curve and review. Unemployment rate- minimum wage, market power of unions, power of job search. Inflation rate- growth of money supply (increase in ms = increase in price) Phillips curve: a curve that shows the short-run trade-off between inflation and unemployment. Relationship between c (consumption) and di (disposable income) is positive. Real interest rate (negative correlation-high interest rate, save more) Relationship between investment spending and real interest rate (negative correlation) Lower interest rate, businesses invest more (higher investment) Higher interest rate, cost firms more to borrow money. Y = initial spending x 1/ 1-mpc. Mpc = change in c/ change in i. Ads model is only model use to analyze economy in short run. 3 reasons why prince and ad are negative correlation. C, i, g, nx can shift ad except price and real gdp.

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Related Questions

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. 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 can’t affect inflation in the long run b. money is neutral in the long run c. monetary policy can’t 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

1) As the unemployment rate rises:

A) the separation rate decreases.

B) the young and unskilled experience lower-than-average increases in unemployment.

C) the young and skilled experience larger-than-average increases in unemployment.

D) the young and unskilled experience larger-than-average increases in unemployment.

E) the proportion of the unemployed finding a job increases.

2) The natural level of employment will increase when which of the following occurs?

A) a decrease in the markup of prices over costs

B) an increase in the natural level of output

C) an increase in the actual unemployment rate

D) an increase in unemployment benefits

E) an increase in the markup of prices over costs

3) Suppose workers and firms expect the overall price level to increase by 4%. Given this information, we would expect that:

A) the real wage will decrease by 4%.

B) the real wage will increase by 4%.

C) the nominal wage will increase by less than 4%.

D) the nominal wage will increase by more than 4%.

E) the nominal wage will increase by exactly 4%.

4) An increase in the minimum wage will cause:

A) a reduction in the equilibrium real wage.

B) an increase in the natural rate of unemployment.

C) an increase in the equilibrium real wage.
D) a decrease in the natural rate of unemployment.

E) no change in the natural rate of unemployment.

5) In the aggregate demand relation, a reduction in the price level causes output to increase because of its effect on:

A) firms' markup over labor costs.

B) the nominal wage.

C) the interest rate.

D) the expected price level.

E) government spending.

6) The short-run aggregate supply curve (AS) is upward sloping because:

A) an increase in output causes an increase in employment, a reduction in unemployment, an increase in the nominal wage, and an increase in the price level.

B) a reduction in the aggregate price level causes a reduction in nominal money demand and a reduction in the interest rate.

C) a reduction in the aggregate price level (P) will cause a reduction in the interest rate and an increase in output.

D) an increase in the aggregate price level will cause an increase in the interest rate and a reduction in output.

E) an increase in the nominal wage causes a reduction in the amount of output that firms are willing to produce.

7) Assume that the economy is initially operating at the natural level of output. A simultaneous expansionary monetary policy and an increase in oil prices will cause which of the following?

A) an increase in output and a reduction in the interest rate in the short run

B) a reduction in output and an increase in the interest rate in the short run

C) a reduction in output and a reduction in the interest rate in the short run

D) an ambiguous effect in output and an increase in the price level in the short run

E) an ambiguous effect in output and a reduction in the price level in the short run

8) Assume that the economy is initially operating at the natural level of output. A one-time 4% reduction in the nominal money supply will cause:

A) a 4% increase in the price level in the medium run.

B) a 4% reduction in the price level in the medium run.

C) a 4% increase in the real money supply in the medium run.

D) a 4% increase in the interest rate (i) in the medium run.

E) a 4% reduction in investment in the medium run.

9) The original Phillips curve implied that:

A) the markup over labor costs is zero.

B) the expected inflation rate is equal to last year's inflation rate.

C) a lower rate of unemployment causes an increase in the rate of inflation.

D) the inflation is always zero.

E) the expected inflation is always zero.

10) In the Phillips curve equation, which of the following will NOT cause a rise in the current inflation rate?

A) a rise in the minimum wage

B) a rise in the expected inflation rate

C) a rise in the employment insurance

D) a drop in the markup

E) a fall in the unemployment rate

2. Using the AS and AD, WS and PS, and IS-LM graphs, illustrate and explain the short run and medium run effects of less stringent enforcement of existing antitrust legislation (Monopolist market power increased) . Explain what happens to P, Y, I, W/P, I and u.