IMPACT OF TAXES AND TRANSFERS
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Enami, Lustig, Aranda, No. 25, November 2016<br />
It can be shown that<br />
(9) L X (p) = (1 + b) C X+B (p) − b C B (p)<br />
which implies that<br />
(10) L X (p) ≥ C X+B (p) C X+B (p) ≥ C B (p).<br />
If we assume no re-ranking, that is,<br />
(11) −1 ≤ b’(x)<br />
where b’(x) is the increase in benefits that occurs as pre-transfer income X rises, the ranking of<br />
people by pre-transfer and post-transfer income does not change. Thus, equation 10 can be rewritten<br />
as<br />
(10)’ L X (p) ≥ L X+B (p) L X+B (p) ≥ C B (p).<br />
Under no reranking, incomes are less unequal after transfers than before if and only if transfers<br />
are distributed more equally than the income to which they apply. If the average transfer rate<br />
b(x) decreases with income everywhere, then transfers are distributed more equally than pretransfer<br />
income. This scenario is shown in figure 4.<br />
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