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The government expenditure multiplier is calculated by which of the following:

Solution

✅ Correct Option: 3

With a proportional income tax at rate tt, disposable income is (1−t)Y(1-t)Y and consumption is c(1−t)Yc(1-t)Y. Equilibrium gives Y=Aˉ+c(1−t)YY = \bar{A} + c(1-t)Y, so ΔY/ΔG=11−c(1−t)\Delta Y/\Delta G = \frac{1}{1-c(1-t)}. This is the government expenditure multiplier with taxes.

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