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The Stata Journal
Volume 16 Number 4: pp. 837-866

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Estimating Lorenz and concentration curves

Ben Jann
University of Bern
Bern, Switzerland
Abstract.  Lorenz and concentration curves are widely used tools in inequality research. In this article, I present a new command, lorenz, that estimates Lorenz and concentration curves from individual-level data and, optionally, displays the results in a graph. The lorenz command supports relative, generalized, absolute, unnormalized, custom-normalized Lorenz, and concentration curves. It also provides tools for computing contrasts between different subpopulations or outcome variables. lorenz fully supports variance estimation for complex samples.
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