Macroeconomics (Fourth Edition)
4th Edition
ISBN: 9780393603767
Author: Charles I. Jones
Publisher: W. W. Norton & Company
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Question
Chapter 12, Problem 10E
(a)
To determine
The impact of the consumption boom in the economy.
(b)
To determine
Interference of the Fed.
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Suppose that the government is considering enacting an expansionary policy in 2023 that would shift aggregate demand in 2024 from ADAADA to ADBADB. This would cause a (move along , shift of) the short-run Phillips curve, resulting in (increase, decrease) in the inflation rate and (increase, decrease) in the unemployment rate.
Suppose the Phillips curve is
and the Aggregate Demand curve is
Tt = Tt1+3ytot
Yt = at 5(πt - 0.02)
where at = Ot = 0 in the steady state.
(a) Calculate the steady state values of output and inflation in this economy.
(b) Calculate the short- and long-run responses of the economy to the following shocks (use a
table to report your answers, as well as show them graphically on the AD-AS graph, as well
as plot inflation and output against time):
(1) A one-time decrease in ot to -0.05.
(2) A one-time increase in at to 0.05 (at returns to 0 thereafter).
(3) A permanent decrease in the Fed's inflation target from 0.02 to 0.
The Phillips curve represents the relationship between unemployment and inflation. You are required to think about the impact on the economy of movements along the curve. If the unemployment rate in the economy is steady at 4 percent per year, how does the short-run Phillips curve predict that the inflation rate will be changing, if at all? What will happen if the unemployment rate now rises to 7 percent per year? Assume there are no changes to inflation expectations. Provide an appropriate graph to support your discussion.
Chapter 12 Solutions
Macroeconomics (Fourth Edition)
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- MAKE YOUR OWN QUESTION Consider an economy on its long-run path. The inflation is 10%. Suppose the slope of the Phillips curve is v= . In order to bring the inflation rate down from 10% to %, GDP should fall below its potential value by %. Choose your own values to answer this question. Justify carefully your answer.arrow_forwardOverstimulating the economy: Suppose the economy today is producing output at its potential level and the inflation rate is equal to its long-run level, with π = 2%. What happens if policymakers try to stimulate the economy to keep output above potential by 3% every year? How does your answer depend on the slope of the Phillips curve?arrow_forwardYou observe the following short-run Phillips curve for the economy: T = 9.2 -0.26(u - 6.5%) + v. There are no supply shocks to the economy, and the actual unemployment rate is 6.5% (and will stay that way for the foreseeable future). What will expected inflation be next year? Write your answer as a percentage, and round at one (1) decimal. Do not write the percentage sign. If you need more information to answer the question, write "O".arrow_forward
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- Please note I only need help with Part 4 and 5. I have answers for the other parts. Thank you so much for your time and effort! Figure 2: Keynes’s AD-AS Model (Image normally goes here) Part 1:Changes in which factors could cause aggregate demand to shift from AD to AD1? What could happen to the unemployment rate? What could happen to the inflation rate? Part 2: The Keynesian AD-AS model describes what happens with price levels when aggregate demand increases. Could you find any evidence from the last ten-fifteen years that might support AD-AS model descriptions of demand-pull inflation, cost-push inflation, and recession? For example, you could find data on the GDP’s of any two countries from 2000 to 2017 to support your findings. Please note the followong for the next 3 parts of this. In macroeconomics, the immediate short run is known as a length of time when both input prices and output prices are fixed. In the short-run, input prices are fixed but output prices are variable. In…arrow_forwarda) Are the effects of an increase in aggregate demand in the AD-AS model consistent with the Phillips curve? Explain. b. Discuss the factors determining the slope of the short-run Phillips curve. Is the linear shape appropriate? Why or why not?arrow_forward(a) What events of the 1970s and 1980s made economists believe that the shortrun relationship between inflation and unemployment was unstable (not fixed and permanent)? (b) Explain, using a diagram(s) and the concept of stagflation, the relationship between shifts in the SRAS curve and the position of the short-run Phillips curve.arrow_forward
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