Econometrics (Jan 2019)

Gini Regressions and Heteroskedasticity

  • Arthur Charpentier,
  • Ndéné Ka,
  • Stéphane Mussard,
  • Oumar Hamady Ndiaye

DOI
https://doi.org/10.3390/econometrics7010004
Journal volume & issue
Vol. 7, no. 1
p. 4

Abstract

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We propose an Aitken estimator for Gini regression. The suggested A-Gini estimator is proven to be a U-statistics. Monte Carlo simulations are provided to deal with heteroskedasticity and to make some comparisons between the generalized least squares and the Gini regression. A Gini-White test is proposed and shows that a better power is obtained compared with the usual White test when outlying observations contaminate the data.

Keywords