Question

Given the information below, complete the chart and answer the questions that follow. Assume there are...

  1. Given the information below, complete the chart and answer the questions that follow. Assume there are no taxes, so Y = Yd. Also, assume that I, G and (X-M) are autonomous expenditures.

S

Y

C

I

G

(X-M)

TE

0

5,000

2,500

2,000

500

10,000

12,500

20,000

30,000

40,000

50,000

  1. What is the MPC?

  1. What is the MPS?

  1. What is the specific consumption function for this economy?

  1. What is equilibrium income?

Homework Answers

Answer #1

A) Consumption rises by 7500 while income rises by 10000 so MPC is 7500/10000 = 0.75

B) MPS = 1 - MPC = 1 - 0.75 = 0.25

C) Consumption function is C = 5000 + 0.75Y.

D) At equilibrium Y = TE. This gives an equilibrium income of 40000.

S Y C I G NX TE
-5000 0 5000 2500 2000 500 10000
-2500 10000 12500 2500 2000 500 17500
0 20000 20000 2500 2000 500 25000
2500 30000 27500 2500 2000 500 32500
5000 40000 35000 2500 2000 500 40000
7500 50000 42500 2500 2000 500 47500
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