Macroeconomics
10th Edition
ISBN: 9781319105990
Author: Mankiw, N. Gregory.
Publisher: Worth Publishers,
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Chapter 15, Problem 7PA
(a)
To determine
The effect of changes in natural rate of interest
(b)
To determine
The effect of shock to
(c)
To determine
The difficulties faced by the central bank if the natural rate of interest
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In the monetary intertemporal model, assume that money supply is always fixed. Suppose that there is an increase in real wage. How does this change affect interest rates (both real and nominal), price level, employment, total factor productivity and equilibrium output? Carefully explain your answers.
b) Suppose that, in a liquidity trap, bank reserves are less liquid than government debt. If the Central Bank conducts an open market purchase of government debt, what is the effect on price level? Use an appropriate set of diagram to explain your answer.
Suppose country A has a central bank with full credibility, and country B has a central bank with no credibility.Using a graph of aggregate demand and supply explain (a long explanation) how the credibility of each country’s central bank affect economic outcomes, if both countries are hit with the same
b) negative temporary aggregate supply shock?
Suppose an economist believes that the price level in the economy is directly related to the money supply, or the amount of money circulating in the economy. The economist proposes the following relationship:
P=A×MP=A×M
•
P=Price LevelP=Price Level
•
M=Money SupplyM=Money Supply
•
A=A composite of other factors, including real GDP, that change very slowly over time.A=A composite of other factors, including real GDP, that change very slowly over time.
How might an economist gather empirical data to test the proposed relationship between money and the price level?
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