High School

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Actual output is $2,000, potential output is $2,500, and the marginal propensity to consume (MPC) is 0.8. Which action will return the economy to potential output?

A. Increase government spending by $125.
B. Increase government spending by $500.
C. Decrease taxes by $125.
D. Increase taxes by $125.

Answer :

(Option c). The economy can be returned to potential output by decrease taxes by $125.

To determine the appropriate change to return the economy to potential output, we need to use the multiplier effect. The multiplier (k) can be calculated as follows:

Multiplier (k) = 1 / (1 - MPC)

= 1 / (1 - 0.8)

= 1 / 0.2

= 5

The output gap is $2,500 (potential output) - $2,000 (actual output) = $500. To find the necessary increase in government spending, we divide the output gap by the multiplier:

$500 ÷ 5 = $100

Decrease Taxes:

For tax changes, the formula is adjusted because the initial change in disposable income is reduced by the MPC:

ΔT × MPC × Multiplier = ΔY

ΔT × 0.8 ×5 = 500

ΔT = 500/0.8×5

ΔT = 125

Hence, the correct option is c.

Complete question:

Actual output is $2,000, potential output is $2,500, and the marginal propensity to consume (MPC) is 0.8. Which will return the economy to potential output?

a) Increase government spending by $125.

b) Increase government spending by $500.

c) Decrease taxes by $125.

d) Increase taxes by $125.

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Rewritten by : Jeany