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The Interpolation of the Lorenz Curve and Gini Index from Grouped Data
Joseph L. Gastwirth and Marcia Glauberman
Vol. 44, No. 3 (May, 1976), pp. 479-483
Published by: The Econometric Society
Stable URL: http://www.jstor.org/stable/1913977
Page Count: 5
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This paper applies a simple heuristic interpolator to estimating the Lorenz curve from grouped data. Precise conditions are given to insure that the method yields a convex curve. The results are illustrated on United States tax data.
Econometrica © 1976 The Econometric Society