If s = MPS,and t = income tax rate,the marginal leakage rate is

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The marginal leakage rate in an economic context refers to the portion of additional income that is not spent on domestic consumption. It is calculated by considering savings rate (s), taxes (t), and imports. The formula s(1 - t) + t accounts for the portion of income saved (s) adjusted for the portion not taxed (1-t), and directly adds the tax rate (t) to account for the portion of income taxed away, effectively capturing the total leakage from the economy.

If S = MPS,and T = Income Tax Rate,the Marginal