Question

100Y 0-300 Respond to the following questi The equilibrium level of income (Y) is* Y=5,000 Y=6,000 Y=1,000 Y=7,000 If autonom
The equation of total expenditure (AE) function is AE= 0.9Y+100 AE=0.1Y500 AE=0,9Y+700 AE=Y+600 Suppose that potential output
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Answer #1

(1)

S = -100 + 0.1Y

Y = C+S

=> C = Y - S

=> C = Y - (-100 + 0.1Y)

=> C = Y + 100 - 0.1Y

=> C = 100 + 0.9Y (Consumption function)

AE = C + I + G

=> AE = 100 + 0.9Y + 400 + 200

=> AE= 700 + 0.9Y

At equilirium, Y = AE

=> Y = 700 + 0.9Y

=> (Y - 0.9Y) = 700

=> 0.1Y = 700

=> Y = (700 / 0.1)

=> Y = 7000

Equilibrium level of income (Y) is 7000.

Answer: Option (D)

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(2) Increase in autonomous investment by 200 will increase the AE by 200 at each level of output.

Answer: Option (B)

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(3) AE = 700 + 0.9Y

Note: Refer Part (1)

Answer: Option (C)

-------------------

(4) Potential output is 4000

Actual equilibrium output is 7000.

Actual equilibrium output is higher than the potential output, implies there is inflation.

Answer: Option (B)

------------------

(5) C = 100 + 0.9Y

Note: Refer Part (1)

Answer: Option (B)

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