On the standard Phillips curve diagram, why do both the Y axis (unexpected inflation) and the X axis (output gap) need to have both positive and negative values? Trick question, they do not need both positive and negative values. Both output gaps and unexpected inflation always begin by being negative. O Negative output gaps are very common. O Both output gaps and unexpected inflation can be negative or positive.

On the standard Phillips curve diagram, why do both the Y axis (unexpected inflation) and the X axis (output gap) need to have both positive and negative values? Trick question, they do not need both positive and negative values. Both output gaps and unexpected inflation always begin by being negative. O Negative output gaps are very common. O Both output gaps and unexpected inflation can be negative or positive.

MACROECONOMICS

14th Edition

ISBN:9781337794985

Author:Baumol

Publisher:Baumol

Chapter17: The Trade-off Between Inflation And Unemploy

Section: Chapter Questions

Problem 2TY

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Consider the expectations adjusted Phillips’s curve and assume that expected inflation is given by πet = πt-1. Suppose that unemployment is initially equal to the natural rate and that π=10%. The central bank decides that inflation is too high and that, starting in year t, it will maintain the unemployment rate 1% point above the natural rate until the inflation rate has decreased to 2%. (a) What is the sacrifice ratio in this economy [Hint: the sacrifice ratio is the percentage of a year’s excess unemployment needed to reduce inflation by 1%. For a Philips curve given as πet − πt −1 = −α (ut − un ), the sacrifice ratio is 1/α]? (b) Compute the rate of inflation for year t, t+1, t+2, t+3, …, t+8. (c) For how many years must the central bank keep the unemployment rate above the natural rate of unemployment? Is the implied sacrifice ratio consistent with your answer to (a)?
Suppose that the government in the economy of the diagram below regards 9 percent unemployment as unacceptable. If the government insists on reducing the unemployment rate from 9 percent to 7 percent, regardless of the consequences, thena. pressure will build in the economy to continuously reduce the rate of inflation.b. the long-run Phillips curve becomes horizontal, freezing the rates of inflation and unemployment.c. the inflation rate will increase but the unemployment rate will stay at 7 percent.d. in the long run the rate of unemployment remains unchanged, but inflation will likely accelerate. Give explanations for the correct one
If the current inflation rate is 10% and you are asked to predict the cost of decreasing it to 3% next year. 1)Will it result deflation policy or a disinflation policy? Why? 2) Give an estimate of the cost in terms of output assuming the sacrifice ratio is 4 and explain the economic cost of reducing inflation by drawing the Phillips curve. 3) If an economist says computing the cost of this policy using the sacrifice ratio is not totally correct because people are rational and they will take the new policy into account when forming expectations about the future. Explain this statement and the reason behind it by showing what happens the Phillips curve 4)if people update their expectations about the future instantaneously. How costly would it be to reduce inflation if the adjustment in expectations occurs instantaneously?
Using the inflation-unemployment version of the Phillips curve with adaptive expectations, ifaggregate demand increasesA)workers will realize that inflation has changed in the long run but not in the short run.B)the SRPC will immediately shift to the right as workers expect higher pricesC)workers will mistakenly work less, resulting in a decrease in inflation and increase inunemploymentD)actual inflation will be less than expected inflation, resulting in workers mistakenly workingmore and unemployment falling.
The importance of using rather than saving your ammunition in the presence of the zero lower bound. Suppose inflation is described by the accelerations Phillips curve, and that output is determined by a simple IS curveInitially, the central bank is setting the nominal interest rate at a strictly positive level: i(0) > 0. Assume(a) Suppose the central bank keeps i constant at i (0). Sketch the behavior of inflation and output over time.(b) Suppose the central bank keeps i constant at i (0) until some time when bπ(t) < 0, and then permanently reduces i to zero. Sketch the behavior of inflation and output over time.(c) Suppose the central bank permanently reduces i to zero at t = 0. Sketch the behavior of inflation and output over time.(d) Explain your results intuitively.
Suppose that an economy has a phillips curve π=π₋₁ -0.5(u-0.08) a) what is the natural rate of unemployement? b) how much cyclical unemployment is necessary to reduce inflation by 5% points? using okun's Law, compute the sacrifice ratio. c) inflation is runnuing 10%. the fed wants to reduce it to 5%. give two scenarios that will achieve that goal.
Suppose that an economy has the Phillips curvep=p-1 - O.S(u - 0.06),a) What is the natural rate of unemployment?b) Graph the short-run and long-run relationships between inflation and unemployment.c) How much cyclical unemployment is necessary to reduce inflation by S percentage points?d) Using Okun's law, compute the sacrifice ratio e.e)Inflation is running at 10 percent. The Fed wants to reduce it to 5 percent. Give Iwoscenarios that will achieve that goal.
1. An economy has the following equation for the Phillips Curve: π = Eπ − 0.5(u − 6)People form expectations of inflation by taking a weighted average of the previous two years of inflation: Okun’s law for this economy is: Eπ = 0.7π−1 + 0.3π−2 (Y −Y−1)/(Y-1)=3.0−2.0(u−u−1) Th economy begins at its natural rate of unemployment with a stable inflation rate of 5 percent. Graph the short-run tradeoff between inflation and unemployment that this economy faces. Label the point where the economy begins as A. (Be sure to give numerical values for point A.) A fall in aggregate demand leads to a recession, causing the unemployment rate to rise 4 percentage points above its natural rate. On your graph in part (b), label the point the economy experiences that year as point B.(Be sure to give numerical values.) Unemployment remains at this high level for two years (the initial year described in part (c) and one more), after which it returns to its natural rate. Create a table showing…
Suppose that an economy has the Phillips curve π = π−1 − 0.5( u − 0.06). a. What is the natural rate of unemployment? b. Graph the short-run and long-run relationships between inflation and unemployment. c. How much cyclical unemployment is necessary to reduce inflation by 5 percentage points? Using Okun’s law, compute the sacrifice ratio. d. Inflation is running at 10 percent. The Fed wants to reduce it to 5 percent. Give two scenarios that will achieve that goal.
An economy has the following equation for the Phillips Curve: π = Eπ − 0.5(u − 6)People form expectations of inflation by taking a weighted average of the previous two years of inflation: Okun’s law for this economy is: Eπ = 0.7π−1 + 0.3π−2 (Y −Y−1)/(Y-1)=3.0−2.0(u−u−1) Th economy begins at its natural rate of unemployment with a stable inflation rate of 5 percent. 1. What is the natural rate of unemployment for this economy? 2. Graph the short-run tradeoff between inflation and unemployment that this economy faces. Label the point where the economy begins as A. 3. A fall in aggregate demand leads to a recession, causing the unemployment rate to rise 4 percentage points above its natural rate. On your graph, label the point the economy experiences that year as point B.
Assume that the cconomy of Country X his an actual unemployment rate of 7%, a natural rate of unemployment of 5%, and an inflation rate of 3%. Using the numerical values given above, draw a correctly labeled graph of the short-run and long-run Phillips curves. Label the current short-run equilibrium as point B. Plot the numerical values above onthe graph. Assume that the government of Country X takes no policy action to reduce unemployment. In the long run, will each of the following shill to the right, shift to the left, or remain the same? (i) Short-run aggregate supply curve. Explain. (ii) Long-run Phillips curve Identify a fiscal policy action that could be used to reduce the unemployment rate in the short run. Draw a correctly labeled graph of aggregate demand and short-run aggregate supply, and show the impact on the equilibrium price level and real gross domestic product (GDP) of the fiscal policy action identified
A. What assumptions did Thomas Sargent make when he claimed that inflation is always and everywhere a fiscal phenomenon?" B. Why is it appropriate in the book's short-term model for the author to use the Phillips Curve as an Aggregate Supply curve? Does it capture the working of the labor market as well as an AS curve based, say, on sticky wages? C. Provide an example of the book's short-run model being based on "microfoundations."