Question

Given an economy described by the following set of equations.

Y = C(Y - T) + I(r) + G

C = 200 + 0.80(Y - T)

I = 300 - 2r

G = 400

T = 200

(M/P)d = 0.80Y - 8r

Ms = 5,600

Price-level = P = 2

What is the equilibrium level of investment?

Answer #1

Given an economy described by the following set of
equations.
Y = C(Y - T) + I(r) + G
C = 200 + 0.80(Y - T)
I = 300 - 2r
G = 400
T = 200
(M/P)d = 0.80Y - 8r
Ms = 5,600
Price-level = P = 2
What is the equilibrium level of GDP?

Given an economy described by the following set of
equations.
Y = C(Y - T) + I(r) + G
C = 200 + 0.80(Y - T)
I = 300 - 2r
G = 400
T = 200
(M/P)d = 0.80Y - 8r
Ms = 5,600
Price-level = P = 2
What is the equilibrium level of consumption?

Given an economy described by the following set of
equations.
Y = C(Y - T) + I(r) + G
C = 200 + 0.80(Y - T)
I = 300 - 2r
G = 400
T = 200
(M/P)d = 0.80Y - 8r
Ms = 5,600
Price-level = P = 2
What is the equilibrium level of consumption?

Suppose that the following equations
describe an economy.
Y = Cd +
Id + G
Cd = 180 +
0.8(Y – T)
Id = 140 –
8r + 0.1Y
T = 400
G = 400
(Md/P) = 6Y – 120i
MS = 6000 i = πe +
r
Assume expected inflation
πe = 0 and price level P = 1.
Find the equation for the IS curve.
Find the equation for the LM curve.
Find the equilibrium values for output...

An economy is initially described by the following
equations:
C = 500 + 0.75(Y - T); I = 1000 - 50r; M/P = Y - 200r;
G = 1000; T = 1000; M = 6000; P = 2;
where Y is income, C is consumption, I is investment, G is
government spending, T is taxes, r is the
real interest rate, M is the money supply, and P is the price
level.
a. Derive the IS equation and the LM...

3. Using the following information about the current
economy:
C = 130 + 0.80(Y-T) where: C: consumption, Y: output
I = 680 -1200r T: taxes, I: Investment, r: real interest rate
T = 70 G: government
G = 110
(M/P) d = 0.6Y – 960r where: (M/P) d : money demand
Ms = 2364 Ms: money supply
P = 1.0 P: price level
(You must show the steps to derive these answers.)
a. Derive the equation for the IS curve...

Suppose the economy is described by the following equations:
C = 350 + .7(Y – T)
I = 100 + .1Y - 1000i
G = 500; T = 500
Money Supply (M/P)s = 3200
Money Demand (M/P)d = 2Y – 4000i
a.Write an equation for the IS relation.
b.Write an equation for the LM relation.
c.Find the equilibrium levels of Y and i.
d.Write the Aggregate Demand equation for this economy with Y
as a function of P.
e. Suppose...

1. Consider an economy with the given equations.
Y=C+I+GY=C+I+G
C=112+0.6(Y−T)C=112+0.6(Y−T)
I=120−10rI=120−10r
(MP)d=Y−15r(MP)d=Y−15r
G=$35G=$35
T=$45T=$45
M=$1200M=$1200
P=3.0
a. Use the relevant set of equations to derive the IS curve and
graph it.
b. What is the equation for the IS curve?
Y =
c. Use the relevant set of equations to derive
the LM curve.
d. Calculate the equilibrium level of income (Y) and
the equilibrium interest rate (r).
Y=
r (%)=
e. Use the relevant set of equations to derive...

The US economy is represented by the following equations:
Z=C+I+G, C=300+.5YD, YD =Y T T =400, I =250, G=1000 Given the above
variables, calculate the equilibrium level of output. Now assume
that consumer confidence increases causing a rise in autonomous
consumption (c0) from 300 to 500. What is the new equilibrium level
of output? How much does income change as a result of this event?
What is the multiplier for this economy?

Consider an economy that is described by the following
equations: C^d= 300+0.75(Y-T)-300r T= 100+0.2Y I^d= 200-200r
L=0.5Y-500i Y=2500; G=600; M=133,200; Pi^e=0.05. (Pi being the
actual greek pi letter sign). Please solve part D and E
(a) obtain the equation of the IS curve
(b) obtain the equation of the LM curve for a general price
level, P
(c) assume that the economy is initially in a long-run (or
general) equilibrium (i.e. Y=Y). Solve for the real interest rate
r, and...

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