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GINIINC: Stata module for measuring inequality from incomplete income and survival data

Author

Listed:
  • Long Hong

    (University of Wisconsin - Madison)

Programming Language

Stata

Abstract

Often, observed income and survival data are incomplete because of left- or right-censoring or left- or right-truncation. Measuring inequality (for instance, by the Gini index of concentration) from incomplete data like these will produce biased results. We describe the package giniinc, which contains three independent commands to estimate the Gini concentration index under different conditions. First, survgini computes a test statistic for comparing two (survival) distributions based on the nonparametric estimation of the restricted Gini index for right-censored data, using both asymptotic and permutation inference. Second, survbound computes nonparametric bounds for the unrestricted Gini index from censored data. Finally, survlsl implements maximum likelihood estimation for three commonly used parametric models to estimate the unrestricted Gini index, both from censored and truncated data. We briefly discuss the methods, describe the package, and illustrate its use through simulated data and examples from an oncology and a historical income study.

Suggested Citation

  • Long Hong, 2020. "GINIINC: Stata module for measuring inequality from incomplete income and survival data," Statistical Software Components S458734, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s458734
    Note: This module should be installed from within Stata by typing "ssc install giniinc". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
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    File URL: http://fmwww.bc.edu/repec/bocode/g/giniinc.sthlp
    File Function: help file
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    File URL: http://fmwww.bc.edu/repec/bocode/l/loglogistic_leftcensor.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/l/loglogistic_lefttrunc.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/l/lognormal_leftcensor.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/l/lognormal_lefttrunc.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/w/weibull_lefttrunc.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/w/weibull_leftcensor.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/s/survbound.ado
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    File URL: http://fmwww.bc.edu/repec/bocode/s/survgini.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/s/survlsl.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/s/survbound.sthlp
    File Function: help file
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    File URL: http://fmwww.bc.edu/repec/bocode/s/survgini.sthlp
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    File URL: http://fmwww.bc.edu/repec/bocode/s/survlsl.sthlp
    File Function: help file
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