Consider an open economy characterized by the following equations: C = c,+c,(Y-7) IM = m,Y The parameters ", and are the propensities to import and export. Assume that the real exchange rate is fixed at a value of 1 and treat foreign income, Y, as fixed. Al/so assume that taxes are fixed and that government purchases are exogenous (i.e., decided by the government). We explore the effectiveness of changes in G under alternative assumptions about the propensity to import.

ENGR.ECONOMIC ANALYSIS
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Chapter1: Making Economics Decisions
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Give answer of only question d, e, f

Consider an open economy characterized by the following equations:
C = c,+e,(Y-7)
%3D
IM = m
,Y
X = x,Y*
The parameters m, and are the propensities to import and export. Assume that the real
exchange rate is fixed at a value of 1 and treat foreign income, Y, as fixed. Al/so assume that
taxes are fixed and that government purchases are exogenous (i.e., decided by the government).
We explore the effectiveness of changes in G under alternative assumptions about the propensity to
import.
a. Write the equilibrium condition in the market for domestic goods and solve for Y.
b. Suppose government purchases increase by one unit. What is the effect on output? (Assume
that 0 < m, < c, + d, <1, Explain why.)
c. How do net exports change when government purchases increase by one unit?
Now consider two economies, one with mi = 0.5 and the other with mi = 0.1. Each economy is
characterized by (le, + d,) = 0.6,
d. Suppose one of the economies is much larger than the other. Which economy do you expect to
have the larger value of m1? Explain.
e. Calculate your answers to parts b and c for each economy by substituting the appropriate
parameter values.
f. In which economy will fiscal policy have a larger effect on output? In which economy will fiscal
policy have a larger effect on net exports?
Transcribed Image Text:Consider an open economy characterized by the following equations: C = c,+e,(Y-7) %3D IM = m ,Y X = x,Y* The parameters m, and are the propensities to import and export. Assume that the real exchange rate is fixed at a value of 1 and treat foreign income, Y, as fixed. Al/so assume that taxes are fixed and that government purchases are exogenous (i.e., decided by the government). We explore the effectiveness of changes in G under alternative assumptions about the propensity to import. a. Write the equilibrium condition in the market for domestic goods and solve for Y. b. Suppose government purchases increase by one unit. What is the effect on output? (Assume that 0 < m, < c, + d, <1, Explain why.) c. How do net exports change when government purchases increase by one unit? Now consider two economies, one with mi = 0.5 and the other with mi = 0.1. Each economy is characterized by (le, + d,) = 0.6, d. Suppose one of the economies is much larger than the other. Which economy do you expect to have the larger value of m1? Explain. e. Calculate your answers to parts b and c for each economy by substituting the appropriate parameter values. f. In which economy will fiscal policy have a larger effect on output? In which economy will fiscal policy have a larger effect on net exports?
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