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An (almost) unbiased estimator for the S-Gini index

Abstract

This note provides an unbiased estimator for the absolute S-Gini and an almost unbiased estimator for the relative S-Gini for integer parameter values. Simulations indicate that these estimators perform considerably better then the usual estimators, especially for small sample sizes.

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Correspondence to Thomas Demuynck.

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Demuynck, T. An (almost) unbiased estimator for the S-Gini index. J Econ Inequal 10, 109–126 (2012). https://doi.org/10.1007/s10888-010-9142-3

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Keywords

  • S-Gini
  • Unbiased estimators
  • Combinatorics

JEL Classification

  • D63
  • C10