Answer the question on the basis of the following information. The letters Y , Ca, Ig, Xn, G , and T stand for GDP, consumption, gross investment, net exports, government purchases, and net taxes respectively.
Figures are in billions of dollars.
C=40+.8Y
Ca = 40 + .8Yd
I= 40
X = 20
M= 5+0.1y
G = 50
T = 10+0.5y
a) Find out the multiplier POE and MOE with government spending and lump sum tax.
b) Find out the equilibrium level of GDP using the five methods of equilibrium output for POE &