Answer to Question #216306 in Macroeconomics for Ruby

Question

Given: C = 260 + 0.8Y I = 320 G = 300

a) Determine the equilibrium level of income using expenditure and injection-leakage approach

b) Calculate the value of mulitiplier for this economy

Answer 1

PART A

Equilibrium Level$-C+(1-b)Y=G$

-260+(1-0.8)Y= 300

0.2Y=320+260

0.2Y=580

(0.2/0.2)Y=(580/0.2)

Y=2900

PART B

Multiplier value ;

$K=1/(1-MPC)$

K= 1/(1-0.8)

K=1/0.2

K=5