IMPACT OF TAXES AND TRANSFERS
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Enami, Lustig, Aranda, No. 25, November 2016<br />
We will also use the following definitions:<br />
x = pre-tax income<br />
B(x) = transfer at income x<br />
x + B(x) = post-transfer income<br />
B(x) / x = b(x) = average benefit rate at income x<br />
b’(x) = marginal benefit rate<br />
B = total transfers = ∑ i=1 B(x i )<br />
b = total transfers ratio = B / X<br />
=> (1 + b) = (X + B) / X<br />
=> b / (1 + b) = B / (X + B)<br />
L X (p), L X+B (p) = Lorenz curve of pre-transfer income and post-transfer income,<br />
respectively (ranked by original income)<br />
C X+B (p), C B (p) = Concentration curve of post-transfer income and transfer, respectively<br />
(ranked by original income)<br />
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