A. Derive the DAD and DAS equations. Hint: For DAS, express , as a function of (Yt - Yt); for DAD, express Y, as a function of ( - ). B. Suppose the economy experiences an inflation scare: in period t, people believe that inflation in t+1 will be higher so nt> 0 (but for this period only). What happens to DAD and DAS in t? Explain what happens to output, inflation, nominal interest rate, and real interest rate. Show a graph and provide labels for equilibrium points (A, B, C, etc.) as needed.

Economics:
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ISBN:9781285859460
Author:BOYES, William
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Chapter14: Macroeconomic Policy: Tradeoffs, Expectations, Credibility, And Sources Of Business Cycles
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.) Suppose people's inflation expectations are subject to ran-
dom shocks: at time t-1, expected inflation in time t is Et-1t = πt-1+t-1 where n-1 is a
random shock with mean zero but deviates from zero when some event beyond past inflation
causes expected inflation to change. Also, Ett+1 = πt + nt.
Transcribed Image Text:.) Suppose people's inflation expectations are subject to ran- dom shocks: at time t-1, expected inflation in time t is Et-1t = πt-1+t-1 where n-1 is a random shock with mean zero but deviates from zero when some event beyond past inflation causes expected inflation to change. Also, Ett+1 = πt + nt.
A.
Derive the DAD and DAS equations. Hint: For DAS, express as a function
of (Yt - Yt); for DAD, express Y, as a function of (-).
B.
Suppose the economy experiences an inflation scare: in period t, people believe
that inflation in t+1 will be higher so nt > 0 (but for this period only). What happens
to DAD and DAS in t? Explain what happens to output, inflation, nominal interest
rate, and real interest rate. Show a graph and provide labels for equilibrium points
(A, B, C, etc.) as needed.
Transcribed Image Text:A. Derive the DAD and DAS equations. Hint: For DAS, express as a function of (Yt - Yt); for DAD, express Y, as a function of (-). B. Suppose the economy experiences an inflation scare: in period t, people believe that inflation in t+1 will be higher so nt > 0 (but for this period only). What happens to DAD and DAS in t? Explain what happens to output, inflation, nominal interest rate, and real interest rate. Show a graph and provide labels for equilibrium points (A, B, C, etc.) as needed.
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